Atheism, in the broadest sense, is an absence of
belief
A belief is a subjective Attitude (psychology), attitude that something is truth, true or a State of affairs (philosophy), state of affairs is the case. A subjective attitude is a mental state of having some Life stance, stance, take, or opinion ...
in the
existence
Existence is the state of having being or reality in contrast to nonexistence and nonbeing. Existence is often contrasted with essence: the essence of an entity is its essential features or qualities, which can be understood even if one does ...
of
deities
A deity or god is a supernatural being considered to be sacred and worthy of worship due to having authority over some aspect of the universe and/or life. The ''Oxford Dictionary of English'' defines ''deity'' as a God (male deity), god or god ...
. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there no deities. Atheism is contrasted with
theism
Theism is broadly defined as the belief in the existence of at least one deity. In common parlance, or when contrasted with '' deism'', the term often describes the philosophical conception of God that is found in classical theism—or the co ...
, which is the belief that at least one deity exists.
Historically, evidence of atheistic viewpoints can be traced back to classical antiquity and
early Indian philosophy. In the Western world, atheism declined after Christianity gained prominence. The 16th century and the
Age of Enlightenment
The Age of Enlightenment (also the Age of Reason and the Enlightenment) was a Europe, European Intellect, intellectual and Philosophy, philosophical movement active from the late 17th to early 19th century. Chiefly valuing knowledge gained th ...
marked the resurgence of atheistic thought in Europe. Atheism achieved a significant position worldwide in the 20th century. Estimates of those who have an absence of belief in a god range from 500 million to 1.1 billion people.
Atheist organizations have defended the autonomy of
science
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
,
freedom of thought
Freedom of thought is the freedom of an individual to hold or consider a fact, viewpoint, or thought, independent of others' viewpoints.
Overview
Every person attempts to have a cognitive proficiency by developing knowledge, concepts, theo ...
,
secularism
Secularism is the principle of seeking to conduct human affairs based on naturalistic considerations, uninvolved with religion. It is most commonly thought of as the separation of religion from civil affairs and the state and may be broadened ...
, and
secular ethics
Secular ethics is a branch of moral philosophy in which ethics is based solely on human faculties such as logic, empathy, reason or moral intuition, and not derived from belief in supernatural revelation or guidance—a source of ethics in many ...
.
Arguments for atheism range from philosophical to social approaches. Rationales for not believing in deities include the lack of
evidence
Evidence for a proposition is what supports the proposition. It is usually understood as an indication that the proposition is truth, true. The exact definition and role of evidence vary across different fields. In epistemology, evidence is what J ...
,
the
problem of evil
The problem of evil is the philosophical question of how to reconcile the existence of evil and suffering with an Omnipotence, omnipotent, Omnibenevolence, omnibenevolent, and Omniscience, omniscient God.The Stanford Encyclopedia of Philosophy, ...
, the
argument from inconsistent revelations
Religious pluralism is an attitude or policy regarding the diversity of religious belief systems co-existing in society. It can indicate one or more of the following:
* Recognizing and tolerating the religious diversity of a society or c ...
, the rejection of concepts that cannot
be falsified, and the
argument from nonbelief
An argument from nonbelief is a philosophical argument for the nonexistence of God that asserts an inconsistency between God's existence and a world that fails to recognize such an entity. It is similar to the classic argument from evil in af ...
.
Nonbelievers contend that atheism is a more
parsimonious
In philosophy, Occam's razor (also spelled Ockham's razor or Ocham's razor; ) is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements. It is also known as the principle o ...
position than theism and that everyone is born without beliefs in deities;
therefore, they argue that the
burden of proof lies not on the atheist to disprove the existence of gods but on the theist to provide a rationale for theism.
Definition
Writers disagree on how best to define and classify ''atheism'',
contesting what supernatural entities are considered gods, whether atheism is a philosophical position or merely the absence of one, and whether it requires a conscious, explicit rejection; however, the norm is to define atheism in terms of an explicit stance against theism.
Atheism has been regarded as compatible with
agnosticism
Agnosticism is the view or belief that the existence of God, the divine, or the supernatural is either unknowable in principle or unknown in fact. (page 56 in 1967 edition) It can also mean an apathy towards such religious belief and refer t ...
,
[ in : "It is important to note that this interpretation of agnosticism is compatible with theism or atheism, since it is only asserted that ''knowledge'' of God's existence is unattainable."] but has also been contrasted with it.
[: "atheism, in general, the critique and denial of metaphysical beliefs in God or spiritual beings. As such, it is usually distinguished from theism, which affirms the reality of the divine and often seeks to demonstrate its existence. Atheism is also distinguished from agnosticism, which leaves open the question whether there is a god or not, professing to find the questions unanswered or unanswerable."]
Implicit vs. explicit

Some of the ambiguity involved in defining ''atheism'' arises from the definitions of words like ''deity'' and ''god''. The variety of wildly different
conceptions of God
Conceptions of God in classical theist, monotheist, pantheist, and panentheist traditions – or of the supreme deity in henotheistic religions – can extend to various levels of abstraction:
* as a powerful, personal, supernat ...
and deities leads to differing ideas regarding atheism's applicability. The ancient Romans accused Christians of being atheists for not worshiping the
pagan
Paganism (, later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the ...
deities. Gradually, this view fell into disfavor as ''theism'' came to be understood as encompassing belief in any divinity. With respect to the range of phenomena being rejected, atheism may counter anything from the existence of a deity to the existence of any
spiritual,
supernatural
Supernatural phenomena or entities are those beyond the Scientific law, laws of nature. The term is derived from Medieval Latin , from Latin 'above, beyond, outside of' + 'nature'. Although the corollary term "nature" has had multiple meanin ...
, or
transcendental concepts.
Definitions of atheism also vary in the degree of consideration a person must put to the idea of gods to be considered an atheist. Atheism has been defined as the absence of belief that any deities exist. This broad definition would include newborns and other people who have not been exposed to theistic ideas. As far back as 1772,
Baron d'Holbach
Paul Thiry, Baron d'Holbach (; ; 8 December 1723 – 21 January 1789), known as d'Holbach, was a Franco-German philosopher, encyclopedist and writer, who was a prominent figure in the French Enlightenment. He was born in Edesheim, near Landau ...
said that "All children are born Atheists; they have no idea of God." Similarly,
George H. Smith
George Hamilton Smith (February 10, 1949 – April 8, 2022) was an American author, editor, educator, and speaker known for his writings on atheism and libertarianism in the United States.
Early life and activism
Born in Japan in 1949 to Fr ...
suggested that: "The man who is unacquainted with theism is an atheist because he does not believe in a god. This category would also include the child with the conceptual capacity to grasp the issues involved, but who is still unaware of those issues. The fact that this child does not believe in god qualifies him as an atheist."
''Implicit atheism'' is "the absence of theistic belief without a conscious rejection of it" and ''explicit atheism'' is the conscious rejection of belief. It is usual to define atheism in terms of an explicit stance against theism.
For the purposes of his paper on "philosophical atheism",
Ernest Nagel
Ernest Nagel (; ; November 16, 1901 – September 20, 1985) was an American philosopher of science. Suppes, Patrick (1999)Biographical memoir of Ernest Nagel In '' American National Biograph''y (Vol. 16, pp. 216-218). New York: Oxford University ...
contested including the mere absence of theistic belief as a type of atheism.
[
]
reprinted in ''Critiques of God'', edited by Peter A. Angeles, Prometheus Books, 1997. Graham Oppy
Graham Robert Oppy (born 1960) is an Australian philosopher whose main area of research is the philosophy of religion. He is Professor of Philosophy and Associate Dean of Research at Monash University, CEO of the Australasian Association of Phi ...
classifies as ''innocents'' those who never considered the question because they lack any understanding of what a god is, for example one-month-old babies.
Positive vs. negative
Philosophers such as
Antony Flew
Antony Garrard Newton Flew (; 11 February 1923 – 8 April 2010) was an English philosopher. Belonging to the analytic and evidentialist schools of thought, Flew worked on the philosophy of religion. During the course of his career he taught ...
[: "In this interpretation, an atheist becomes: not someone who positively asserts the non-existence of God; but someone who is simply not a theist. Let us, for future-ready reference, introduce the labels 'positive atheist' for the former and 'negative atheist' for the latter."] and
Michael Martin have contrasted positive (strong/hard) atheism with negative (weak/soft) atheism. Positive atheism is the explicit affirmation that gods do not exist. Negative atheism includes all other forms of non-theism. According to this categorization, anyone who is not a theist is either a negative or a positive atheist. Michael Martin, for example, asserts that agnosticism
entails negative atheism.
Agnostic atheism encompasses both atheism and agnosticism.
However, many agnostics see their view as distinct from atheism.

According to atheists' arguments, unproven
religious
Religion is a range of social- cultural systems, including designated behaviors and practices, morals, beliefs, worldviews, texts, sanctified places, prophecies, ethics, or organizations, that generally relate humanity to supernatural ...
propositions deserve as much disbelief as all other unproven propositions. Atheist criticism of agnosticism says that the unprovability of a god's existence does not imply an equal probability of either possibility. Australian philosopher
J.J.C. Smart argues that "sometimes a person who is really an atheist may describe herself, even passionately, as an agnostic because of unreasonable generalized
philosophical skepticism
Philosophical skepticism (UK spelling: scepticism; from Ancient Greek, Greek σκέψις ''skepsis'', "inquiry") is a family of philosophical views that question the possibility of knowledge. It differs from other forms of skepticism in that ...
which would preclude us from saying that we know anything whatever, except perhaps the truths of mathematics and formal logic."
Consequently, some atheist authors, such as
Richard Dawkins
Richard Dawkins (born 26 March 1941) is a British evolutionary biology, evolutionary biologist, zoologist, science communicator and author. He is an Oxford fellow, emeritus fellow of New College, Oxford, and was Simonyi Professor for the Publ ...
, prefer distinguishing theist, agnostic, and atheist positions along a
spectrum of theistic probability
Popularized by Richard Dawkins in '' The God Delusion,'' the spectrum of theistic probability is a way of categorizing one's belief regarding the probability of the existence of a deity.
Atheism, theism, and agnosticism
J. J. C. Smart argue ...
—the likelihood that each assigns to the statement "God exists".
Before the 18th century, the existence of God was so accepted in the Western world that even the possibility of true atheism was questioned. This is called ''theistic
innatism
In the philosophy of mind, innatism is the view that the mind is born with already-formed ideas, knowledge, and beliefs. The opposing doctrine, that the mind is a '' tabula rasa'' (blank slate) at birth and all knowledge is gained from experience ...
''—the notion that all people believe in God from birth; within this view was the connotation that atheists are in denial. Some atheists have challenged the need for the term "atheism". In his book ''
Letter to a Christian Nation
''Letter to a Christian Nation'' is a 2006 book by Sam Harris, written in response to feedback he received following the publication of his first book ''The End of Faith''. The book is written in the form of an open letter to a Christians, Christ ...
'',
Sam Harris
Samuel Benjamin Harris (born April 9, 1967) is an American philosopher, neuroscientist, author, and podcast host. His work touches on a range of topics, including rationality, religion, ethics, free will, determinism, neuroscience, meditation ...
wrote:
In fact, "atheism" is a term that should not even exist. No one ever needs to identify himself as a "non-astrologer
Astrology is a range of Divination, divinatory practices, recognized as pseudoscientific since the 18th century, that propose that information about human affairs and terrestrial events may be discerned by studying the apparent positions ...
" or a "non-alchemist
Alchemy (from the Arabic word , ) is an ancient branch of natural philosophy, a philosophical and protoscientific tradition that was historically practised in China, India, the Muslim world, and Europe. In its Western form, alchemy is first ...
". We do not have words for people who doubt that Elvis is still alive or that aliens have traversed the galaxy only to molest ranchers and their cattle. Atheism is nothing more than the noises reasonable people make in the presence of unjustified religious beliefs.
Etymology
In early
ancient Greek
Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...
, the adjective (, from the
privative ἀ- + "god") meant "godless". It was first used as a term of censure roughly meaning "ungodly" or "impious". In the 5th century BCE, the word began to indicate more deliberate and active godlessness in the sense of "severing relations with the gods" or "denying the gods". The term () then came to be applied against those who impiously denied or disrespected the local gods, even if they believed in other gods. Modern translations of classical texts sometimes render as "atheistic". As an abstract noun, there was also (), "atheism".
Cicero
Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, orator, writer and Academic skeptic, who tried to uphold optimate principles during the political crises tha ...
transliterated the Greek word into the
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
. The term found frequent use in the debate between
early Christians
Early Christianity, otherwise called the Early Church or Paleo-Christianity, describes the historical era of the Christian religion up to the First Council of Nicaea in 325. Christianity spread from the Levant, across the Roman Empire, and bey ...
and
Hellenists
In classical antiquity, the Hellenistic period covers the time in History of Greece, Greek history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra, Cleopatra VII in 30 BC, which was followed ...
, with each side attributing it, in the pejorative sense, to the other.
The term ''atheist'' (from the French ), in the sense of "one who ... denies the existence of God or gods", predates ''atheism'' in English, being first found as early as 1566, and again in 1571. ''Atheist'' as a label of practical godlessness was used at least as early as 1577. The term ''atheism'' was derived from the
French ,
and appears in English about 1587.
[Rendered as ''Athisme'': ]
''Atheism'' was first used to describe a self-avowed belief in late 18th-century Europe, specifically denoting disbelief in the
monotheistic
Monotheism is the belief that one God is the only, or at least the dominant deity.F. L. Cross, Cross, F.L.; Livingstone, E.A., eds. (1974). "Monotheism". The Oxford Dictionary of the Christian Church (2 ed.). Oxford: Oxford University Press. A ...
Abrahamic god
Monotheism—the belief that there is only one deity—is the focus of the Abrahamic religions, which like-mindedly conceive God as the all-powerful and all-knowing deity from whom Abraham received a divine revelation, according to their respe ...
. In the 20th century,
globalization
Globalization is the process of increasing interdependence and integration among the economies, markets, societies, and cultures of different countries worldwide. This is made possible by the reduction of barriers to international trade, th ...
contributed to the expansion of the term to refer to disbelief in all deities, though it remains common in Western society to describe atheism as "disbelief in God".
Arguments
Epistemological arguments
Skepticism
Skepticism ( US) or scepticism ( UK) is a questioning attitude or doubt toward knowledge claims that are seen as mere belief or dogma. For example, if a person is skeptical about claims made by their government about an ongoing war then the p ...
, based on the ideas of
David Hume
David Hume (; born David Home; – 25 August 1776) was a Scottish philosopher, historian, economist, and essayist who was best known for his highly influential system of empiricism, philosophical scepticism and metaphysical naturalism. Beg ...
, asserts that certainty about anything is impossible, so one can never know for sure whether or not a god exists. Hume, however, held that such unobservable metaphysical concepts should be rejected as "sophistry and illusion".
Michael Martin argues that atheism is a justified and rational true belief, but offers no extended epistemological justification because current theories are in a state of controversy. Martin instead argues for "mid-level principles of justification that are in accord with our ordinary and scientific rational practice."
Other arguments for atheism that can be classified as epistemological or
ontological
Ontology is the philosophical study of being. It is traditionally understood as the subdiscipline of metaphysics focused on the most general features of reality. As one of the most fundamental concepts, being encompasses all of reality and every ...
, assert the meaninglessness or unintelligibility of basic terms such as "God" and statements such as "God is all-powerful."
Theological noncognitivism
Theological noncognitivism is the non-theist position that religious language, particularly theological terminology such as 'God', is not intelligible or meaningful, and thus sentences like 'God exists' are cognitively meaningless. This would ...
holds that the statement "God exists" does not express a proposition, but is nonsensical or cognitively meaningless. It has been argued both ways as to whether such individuals can be classified into some form of atheism or agnosticism. Philosophers
A. J. Ayer and
Theodore M. Drange
Theodore "Ted" Michael Drange (born 1934) is a philosopher of religion and Professor Emeritus at West Virginia University, where he taught philosophy from 1966 to 2001.
Life
After graduating from Fort Hamilton High School, he received a B.A. ...
reject both categories, stating that both camps accept "God exists" as a proposition; they instead place noncognitivism in its own category.
Ontological arguments

Most atheists lean toward ontological
monism
Monism attributes oneness or singleness () to a concept, such as to existence. Various kinds of monism can be distinguished:
* Priority monism states that all existing things go back to a source that is distinct from them; e.g., in Neoplatonis ...
: the belief that there is only one kind of fundamental substance. The philosophical
materialism
Materialism is a form of monism, philosophical monism according to which matter is the fundamental Substance theory, substance in nature, and all things, including mind, mental states and consciousness, are results of material interactions. Acco ...
is a view that matter is the fundamental substance in nature. This omits the possibility of a non-material divine being.
According to
physicalism
In philosophy, physicalism is the view that "everything is physical", that there is "nothing over and above" the physical, or that everything supervenience, supervenes on the physical. It is opposed to idealism, according to which the world arises ...
, only physical entities exist.
Philosophies opposed to the materialism or physicalism include
idealism
Idealism in philosophy, also known as philosophical realism or metaphysical idealism, is the set of metaphysics, metaphysical perspectives asserting that, most fundamentally, reality is equivalent to mind, Spirit (vital essence), spirit, or ...
,
dualism
Dualism most commonly refers to:
* Mind–body dualism, a philosophical view which holds that mental phenomena are, at least in certain respects, not physical phenomena, or that the mind and the body are distinct and separable from one another
* P ...
and other forms of monism.
[.] Naturalism is also used to describe the view that everything that exists is fundamentally natural, and that there are no supernatural phenomena.
According to naturalist view, science can explain the world with physical laws and through natural phenomena.
Philosopher
Graham Oppy
Graham Robert Oppy (born 1960) is an Australian philosopher whose main area of research is the philosophy of religion. He is Professor of Philosophy and Associate Dean of Research at Monash University, CEO of the Australasian Association of Phi ...
references a PhilPapers survey that says 56.5% of philosophers in academics lean toward physicalism; 49.8% lean toward naturalism.
According to Graham Oppy, direct arguments for atheism aim at showing theism fails on its own terms, while indirect arguments are those inferred from direct arguments in favor of something else that is inconsistent with theism. For example, Oppy says arguing for naturalism is an argument for atheism since naturalism and theism "cannot both be true".
Fiona Ellis describes the "expansive naturalism" of
John McDowell
John Henry McDowell (born 7 March 1942) is a South African philosopher, formerly a fellow of University College, Oxford, and now university professor at the University of Pittsburgh. Although he has written on metaphysics, epistemology, anci ...
,
James Griffin, and
David Wiggins while also asserting there are things in human experience which cannot be explained in such terms, such as the concept of value, leaving room for theism.
Christopher C. Knight asserts a
theistic naturalism.
Nevertheless, Oppy argues that a strong naturalism favors atheism, though he finds the best direct arguments against theism to be the evidential problem of evil, and arguments concerning the contradictory nature of God were one to exist.
Logical arguments
Some atheists hold the view that the various conceptions of gods, such as the
personal god of Christianity, are ascribed logically inconsistent qualities. Such atheists present
deductive arguments
Deductive reasoning is the process of drawing valid inferences. An inference is Validity (logic), valid if its conclusion follows logically from its premises, meaning that it is impossible for the premises to be true and the conclusion to be false. ...
against the existence of God, which assert the incompatibility between certain traits, such as perfection, creator-status,
immutability
In object-oriented (OO) and functional programming, an immutable object (unchangeable object) is an object whose state cannot be modified after it is created.Goetz et al. ''Java Concurrency in Practice''. Addison Wesley Professional, 2006, Secti ...
,
omniscience
Omniscience is the property of possessing maximal knowledge. In Hinduism, Sikhism and the Abrahamic religions, it is often attributed to a divine being or an all-knowing spirit, entity or person. In Jainism, omniscience is an attribute that any ...
,
omnipresence
Omnipresence or ubiquity is the property of being present anywhere and everywhere. The term omnipresence is most often used in a religious context as an attribute of a deity or supreme being, while the term ubiquity is generally used to describ ...
,
omnipotence
Omnipotence is the property of possessing maximal power. Monotheistic religions generally attribute omnipotence only to the deity of their faith. In the monotheistic religious philosophy of Abrahamic religions, omnipotence is often listed as ...
,
omnibenevolence
Omnibenevolence is the property of possessing maximal goodness. Some philosophers, such as Epicurus, have argued that it is impossible, or at least improbable, for a deity to exhibit such a property alongside omniscience and omnipotence, as a r ...
,
transcendence, personhood (a personal being), non-physicality,
justice
In its broadest sense, justice is the idea that individuals should be treated fairly. According to the ''Stanford Encyclopedia of Philosophy'', the most plausible candidate for a core definition comes from the ''Institutes (Justinian), Inst ...
, and
mercy
Mercy (Middle English, from Anglo-French , from Medieval Latin , "price paid, wages", from Latin , "merchandise") is benevolence, forgiveness, and kindness in a variety of ethical, religious, social, and legal contexts.
In the social and le ...
.
Theodicean atheists believe that the world as they experience it cannot be reconciled with the qualities commonly ascribed to God and gods by theologians. They argue that an omniscient, omnipotent, and omnibenevolent God is not compatible with a world where there is evil and suffering, and where divine love is
hidden from many people.
Epicurus
Epicurus (, ; ; 341–270 BC) was an Greek philosophy, ancient Greek philosopher who founded Epicureanism, a highly influential school of philosophy that asserted that philosophy's purpose is to attain as well as to help others attain tranqui ...
is credited with first expounding the problem of evil. David Hume in his ''
Dialogues concerning Natural Religion'' (1779) cited Epicurus in stating the argument as a series of questions: "Is God willing to prevent evil, but not able? Then he is impotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?" Similar arguments have been made in
Buddhist philosophy
Buddhist philosophy is the ancient Indian Indian philosophy, philosophical system that developed within the religio-philosophical tradition of Buddhism. It comprises all the Philosophy, philosophical investigations and Buddhist logico-episte ...
.
Vasubandhu
Vasubandhu (; Tibetan: དབྱིག་གཉེན་ ; floruit, fl. 4th to 5th century CE) was an influential Indian bhikkhu, Buddhist monk and scholar. He was a philosopher who wrote commentary on the Abhidharma, from the perspectives of th ...
(4th/5th century) outlined
numerous Buddhist arguments against God.
Secular accounts of religion
Philosopher
Ludwig Feuerbach
Ludwig Andreas von Feuerbach (; ; 28 July 1804 – 13 September 1872) was a German anthropologist and philosopher, best known for his book '' The Essence of Christianity'', which provided a critique of Christianity that strongly influenced ge ...
and psychoanalyst
Sigmund Freud
Sigmund Freud ( ; ; born Sigismund Schlomo Freud; 6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis, a clinical method for evaluating and treating psychopathology, pathologies seen as originating fro ...
have argued that God and other religious beliefs are human inventions, created to fulfill various psychological and emotional wants or needs.
Karl Marx
Karl Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, political theorist, economist, journalist, and revolutionary socialist. He is best-known for the 1848 pamphlet '' The Communist Manifesto'' (written with Friedrich Engels) ...
and
Friedrich Engels
Friedrich Engels ( ;["Engels"](_blank)
''Random House Webster's Unabridged Dictionary''.[Mikhail Bakunin
Mikhail Alexandrovich Bakunin. Sometimes anglicized to Michael Bakunin. ( ; – 1 July 1876) was a Russian revolutionary anarchist. He is among the most influential figures of anarchism and a major figure in the revolutionary socialist, s ...]
, "the idea of God implies the abdication of human reason and justice; it is the most decisive negation of human liberty, and necessarily ends in the enslavement of mankind, in theory, and practice." He reversed
Voltaire
François-Marie Arouet (; 21 November 169430 May 1778), known by his ''Pen name, nom de plume'' Voltaire (, ; ), was a French Age of Enlightenment, Enlightenment writer, philosopher (''philosophe''), satirist, and historian. Famous for his wit ...
's aphorism that if God did not exist, it would be necessary to invent him, writing instead that "if God really existed, it would be necessary to abolish him."
Atheism and ethics
Secular ethics

Sociologist
Phil Zuckerman
Philip Joseph Zuckerman is a sociologist and professor of sociology and secular studies at Pitzer College in Claremont, California. He specializes in the sociology of substantial secularity and is the author of eight books, including ''Beyond Do ...
analyzed previous social science research on secularity and non-belief and concluded that societal well-being is positively correlated with irreligion. He found that there are much lower concentrations of atheism and secularity in poorer, less developed nations (particularly in Africa and South America) than in the richer industrialized democracies.
His findings relating specifically to atheism in the US were that compared to religious people in the US, "atheists and secular people" are less
nationalistic,
prejudice
Prejudice can be an affect (psychology), affective feeling towards a person based on their perceived In-group and out-group, social group membership. The word is often used to refer to a preconceived (usually unfavourable) evaluation or classifi ...
d,
antisemitic
Antisemitism or Jew-hatred is hostility to, prejudice towards, or discrimination against Jews. A person who harbours it is called an antisemite. Whether antisemitism is considered a form of racism depends on the school of thought. Antisemi ...
,
racist
Racism is the belief that groups of humans possess different behavioral traits corresponding to inherited attributes and can be divided based on the superiority of one Race (human categorization), race or ethnicity over another. It may also me ...
,
dogma
Dogma, in its broadest sense, is any belief held definitively and without the possibility of reform. It may be in the form of an official system of principles or doctrines of a religion, such as Judaism, Roman Catholicism, Protestantism, or Islam ...
tic,
ethnocentric
Ethnocentrism in social science and anthropology—as well as in colloquial English discourse—means to apply one's own culture or ethnicity as a frame of reference to judge other cultures, practices, behaviors, beliefs, and people, instead of ...
, closed-minded, and authoritarian, and in US states with the highest percentages of atheists, the murder rate is lower than average. In the most religious states, the murder rate is higher than average.
Joseph Baker and Buster Smith assert that one of the common themes of atheism is that most atheists "typically construe atheism as more moral than religion".
One of the most common
criticisms of atheism has been to the contrary: that denying the existence of a god either leads to
moral relativism
Moral relativism or ethical relativism (often reformulated as relativist ethics or relativist morality) is used to describe several Philosophy, philosophical positions concerned with the differences in Morality, moral judgments across different p ...
and leaves one with no moral or ethical foundation,
or renders life
meaningless and miserable.
Blaise Pascal
Blaise Pascal (19June 162319August 1662) was a French mathematician, physicist, inventor, philosopher, and Catholic Church, Catholic writer.
Pascal was a child prodigy who was educated by his father, a tax collector in Rouen. His earliest ...
argued this view in his ''
Pensées
The (''Thoughts'') is a collection of fragments written by the French 17th-century philosopher and mathematician Blaise Pascal. Pascal's religious conversion led him into a life of asceticism, and the was in many ways his life's work. It repre ...
''. There is also a position claiming that atheists are quick to believe in God in times of crisis, that atheists make
deathbed conversion
A deathbed conversion is the adoption of a particular religious faith shortly before dying. Making a Religious conversion, conversion on one's :wikt:deathbed, deathbed may reflect an immediate change of belief, a desire to formalize longer-ter ...
s, or that "
there are no atheists in foxholes
"There are no atheists in foxholes" is an aphorism used to suggest that times of extreme stress or fear can prompt belief in a higher power. In the context of actual warfare, such a sudden change in belief has been called a foxhole conversion. T ...
". There have, however, been examples to the contrary, among them examples of literal "atheists in foxholes". There exist
normative ethical systems that do not require principles and rules to be given by a deity.
According to Plato's
Euthyphro dilemma
The Euthyphro dilemma is found in Plato's dialogue ''Euthyphro'', in which Socrates asks Euthyphro, "Is the pious ( τὸ ὅσιον) loved by the gods because it is pious, or is it pious because it is loved by the gods?" ( 10a)
Although it ...
, the role of the gods in determining right from wrong is either unnecessary or arbitrary.
The argument that morality must be derived from God, and cannot exist without a wise creator, has been a persistent feature of political if not so much philosophical debate.
[For ]Kant
Immanuel Kant (born Emanuel Kant; 22 April 1724 – 12 February 1804) was a German philosopher and one of the central Enlightenment thinkers. Born in Königsberg, Kant's comprehensive and systematic works in epistemology, metaphysics, et ...
, the presupposition of God, soul, and freedom was a practical concern, for "Morality, by itself, constitutes a system, but happiness does not, unless it is distributed in exact proportion to morality. This, however, is possible in an intelligible world only under a wise author and ruler. Reason compels us to admit such a ruler, together with life in such a world, which we must consider as future life, or else all moral laws are to be considered as idle dreams" (''Critique of Pure Reason'', A811). Moral precepts such as "murder is wrong" are seen as
divine law
Divine law is any body of law that is perceived as deriving from a Transcendence (religion), transcendent source, such as the will of God or godsin contrast to man-made law or to secular law. According to Angelos Chaniotis and Rudolph F. Peters, di ...
s, requiring a divine lawmaker and judge. However, many atheists argue that treating morality legalistically involves a
false analogy
Argument from analogy is a special type of inductive argument, where perceived similarities are used as a basis to infer some further similarity that has not been observed yet. Analogical reasoning is one of the most common methods by which huma ...
, and that morality does not depend on a lawmaker in the same way that laws do.
Philosophers
Susan Neiman
Susan Neiman (; born March 27, 1955) is an American moral philosopher, cultural commentator and essayist. She has written extensively on the juncture between Enlightenment moral philosophy, metaphysics, and politics, both for scholarly audiences ...
and
Julian Baggini
Julian Baggini ( , ; born 1968) is an English philosopher, journalist and the author of over 20 books about philosophy written for a general audience. He is co-founder of ''The Philosophers' Magazine'', and has written for numerous internationa ...
among others assert that behaving ethically only because of a divine mandate is not true ethical behavior but merely blind obedience. Baggini argues that atheism is a superior basis for ethics, claiming that a moral basis external to religious imperatives is necessary to evaluate the morality of the imperatives themselves—to be able to discern, for example, that "thou shalt steal" is immoral even if one's religion instructs it—and that atheists, therefore, have the advantage of being more inclined to make such evaluations.
Criticism of religion

Some prominent atheists—most recently
Christopher Hitchens
Christopher Eric Hitchens (13 April 1949 – 15 December 2011) was a British and American author and journalist. He was the author of Christopher Hitchens bibliography, 18 books on faith, religion, culture, politics, and literature. He was born ...
,
Daniel Dennett
Daniel Clement Dennett III (March 28, 1942 – April 19, 2024) was an American philosopher and cognitive scientist. His research centered on the philosophy of mind, the philosophy of science, and the philosophy of biology, particularly as those ...
,
Sam Harris
Samuel Benjamin Harris (born April 9, 1967) is an American philosopher, neuroscientist, author, and podcast host. His work touches on a range of topics, including rationality, religion, ethics, free will, determinism, neuroscience, meditation ...
, and
Richard Dawkins
Richard Dawkins (born 26 March 1941) is a British evolutionary biology, evolutionary biologist, zoologist, science communicator and author. He is an Oxford fellow, emeritus fellow of New College, Oxford, and was Simonyi Professor for the Publ ...
, and following such thinkers as
Bertrand Russell
Bertrand Arthur William Russell, 3rd Earl Russell, (18 May 1872 – 2 February 1970) was a British philosopher, logician, mathematician, and public intellectual. He had influence on mathematics, logic, set theory, and various areas of analytic ...
,
Robert G. Ingersoll
Robert Green Ingersoll (; August 11, 1833 – July 21, 1899), nicknamed "the Great Agnostic", was an American lawyer, writer, and orator during the Golden Age of Free Thought, who campaigned in defense of agnosticism.
Personal life
Robert Inge ...
, Voltaire, and novelist
José Saramago
José de Sousa Saramago (; 16 November 1922 – 18 June 2010) was a Portuguese people, Portuguese writer. He was the recipient of the 1998 Nobel Prize in Literature for his "parables sustained by imagination, compassion and irony [with which ...
—have criticized religions, citing harmful aspects of religious practices and doctrines.
The 19th-century German political theorist and sociologist
Karl Marx
Karl Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, political theorist, economist, journalist, and revolutionary socialist. He is best-known for the 1848 pamphlet '' The Communist Manifesto'' (written with Friedrich Engels) ...
called religion "the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people". He goes on to say, "The abolition of religion as the illusory happiness of the people is the demand for their real happiness. To call on them to give up their illusions about their condition is to call on them to give up a condition that requires illusions. The criticism of religion is, therefore, in embryo, the criticism of that vale of tears of which religion is the halo."
Sam Harris criticizes Western religion's reliance on divine authority as lending itself to
authoritarianism
Authoritarianism is a political system characterized by the rejection of political plurality, the use of strong central power to preserve the political ''status quo'', and reductions in democracy, separation of powers, civil liberties, and ...
and
dogma
Dogma, in its broadest sense, is any belief held definitively and without the possibility of reform. It may be in the form of an official system of principles or doctrines of a religion, such as Judaism, Roman Catholicism, Protestantism, or Islam ...
tism. Multiple studies have discovered there to be a correlation between
religious fundamentalism
Fundamentalism is a tendency among certain groups and individuals that are characterized by the application of a strict literal interpretation to scriptures, dogmas, or ideologies, along with a strong belief in the importance of distinguis ...
and
extrinsic religion (when religion is held because it serves ulterior interests)
and authoritarianism, dogmatism, and prejudice.
These arguments—combined with historical events that are argued to demonstrate the dangers of religion, such as the
Crusades
The Crusades were a series of religious wars initiated, supported, and at times directed by the Papacy during the Middle Ages. The most prominent of these were the campaigns to the Holy Land aimed at reclaiming Jerusalem and its surrounding t ...
,
inquisition
The Inquisition was a Catholic Inquisitorial system#History, judicial procedure where the Ecclesiastical court, ecclesiastical judges could initiate, investigate and try cases in their jurisdiction. Popularly it became the name for various med ...
s,
witch trials, and
terrorist attacks—have been used in response to claims of beneficial effects of belief in religion.
Believers counter-argue that some
regimes that espouse atheism, such as the
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
, have also been guilty of mass murder.
In response to those claims, atheists such as Sam Harris and Richard Dawkins have stated that Stalin's atrocities were influenced not by atheism but by dogmatic ideology, and that while Stalin and Mao happened to be atheists, they did not do their deeds in the name of atheism.
Atheism, religions, and spirituality
People who self-identify as atheists are often assumed to be
irreligious
Irreligion is the absence or rejection of religious beliefs or practices. It encompasses a wide range of viewpoints drawn from various philosophical and intellectual perspectives, including atheism, agnosticism, religious skepticism, rationa ...
, but some sects within major religions reject the existence of a personal,
creator deity
A creator deity or creator god is a deity responsible for the creation of the Earth, world, and universe in human religion and mythology. In monotheism, the single God is often also the creator. A number of monolatristic traditions separate a ...
.
It has been said that atheism is not mutually exclusive with respect to some religious and spiritual belief systems, including modern
Neopagan movements.
In recent years, certain religious denominations have accumulated a number of openly atheistic followers, such as
atheistic or
humanistic Judaism
Humanistic Judaism () is a Jewish movement that offers a nontheistic alternative to contemporary branches of Judaism. It defines Judaism as the cultural and historical experience of the Jewish people rather than a religion, and encourages Jews ...
and
Christian atheists. Atheism is accepted as a valid philosophical position within some varieties of
Hinduism
Hinduism () is an Hypernymy and hyponymy, umbrella term for a range of Indian religions, Indian List of religions and spiritual traditions#Indian religions, religious and spiritual traditions (Sampradaya, ''sampradaya''s) that are unified ...
,
Jainism
Jainism ( ), also known as Jain Dharma, is an Indian religions, Indian religion whose three main pillars are nonviolence (), asceticism (), and a rejection of all simplistic and one-sided views of truth and reality (). Jainism traces its s ...
, and
Buddhism
Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...
.
History
Early Indian religions
Ideas that would be recognized today as atheistic are documented in the
Vedic period
The Vedic period, or the Vedic age (), is the period in the late Bronze Age and early Iron Age of the history of India when the Vedic literature, including the Vedas (–900 BCE), was composed in the northern Indian subcontinent, between the e ...
and the
classical antiquity
Classical antiquity, also known as the classical era, classical period, classical age, or simply antiquity, is the period of cultural History of Europe, European history between the 8th century BC and the 5th century AD comprising the inter ...
.
Atheistic schools are found in early Indian thought and have existed from the times of the
historical Vedic religion
The historical Vedic religion, also called Vedism or Brahmanism, and sometimes ancient Hinduism or Vedic Hinduism, constituted the religious ideas and practices prevalent amongst some of the Indo-Aryan peoples of the northwest Indian subcontin ...
.
Among the six
orthodox schools of Hindu philosophy,
Samkhya
Samkhya or Sankhya (; ) is a dualistic orthodox school of Hindu philosophy. It views reality as composed of two independent principles, '' Puruṣa'' ('consciousness' or spirit) and '' Prakṛti'' (nature or matter, including the human mind a ...
, the oldest philosophical school of thought does not accept God, and the early
Mimamsa also rejected the notion of God.
The thoroughly materialistic and anti-theistic philosophical
Chārvāka (or ''Lokāyata'') a school that originated in
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
around the 6th century BCE is probably the most explicitly atheistic school of philosophy in India, similar to the Greek
Cyrenaic school. This branch of Indian philosophy is classified as
heterodox due to its rejection of the authority of
Vedas
FIle:Atharva-Veda samhita page 471 illustration.png, upright=1.2, The Vedas are ancient Sanskrit texts of Hinduism. Above: A page from the ''Atharvaveda''.
The Vedas ( or ; ), sometimes collectively called the Veda, are a large body of relig ...
and hence is not considered part of the six orthodox schools of
Indian philosophy
Indian philosophy consists of philosophical traditions of the Indian subcontinent. The philosophies are often called darśana meaning, "to see" or "looking at." Ānvīkṣikī means “critical inquiry” or “investigation." Unlike darśan ...
. It is noteworthy as evidence of a materialistic movement in ancient India.
Satischandra Chatterjee and Dhirendramohan Datta explain in ''An Introduction to Indian Philosophy'' that our understanding of Chārvāka philosophy is fragmentary, based largely on criticism of the ideas by other schools: "Though
materialism
Materialism is a form of monism, philosophical monism according to which matter is the fundamental Substance theory, substance in nature, and all things, including mind, mental states and consciousness, are results of material interactions. Acco ...
in some form or other, has always been present in India, and occasional references are found in the Vedas, the Buddhistic literature, the Epics, as well as in the later philosophical works we do not find any systematic work on materialism, nor any organized school of followers as the other philosophical schools possess. But almost every work of the other schools states, for refutation, the materialistic views. Our knowledge of Indian materialism is chiefly based on these." Other Indian philosophies generally regarded as atheistic include
Classical Samkhya and
Purva Mimamsa. The rejection of a personal creator, "God", is also seen in
Jainism
Jainism ( ), also known as Jain Dharma, is an Indian religions, Indian religion whose three main pillars are nonviolence (), asceticism (), and a rejection of all simplistic and one-sided views of truth and reality (). Jainism traces its s ...
and
Buddhism
Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and List of philosophies, philosophical tradition based on Pre-sectarian Buddhism, teachings attributed to the Buddha, a wandering teacher who lived in the 6th or ...
in India.
Classical antiquity

Western atheism has its roots in
pre-Socratic
Pre-Socratic philosophy, also known as early Greek philosophy, is ancient Greek philosophy before Socrates. Pre-Socratic philosophers were mostly interested in cosmology, the beginning and the substance of the universe, but the inquiries of the ...
Greek philosophy
Ancient Greek philosophy arose in the 6th century BC. Philosophy was used to make sense of the world using reason. It dealt with a wide variety of subjects, including astronomy, epistemology, mathematics, political philosophy, ethics, metaphysic ...
,
but atheism in the modern sense was extremely rare in ancient Greece.
Pre-Socratic
Atomists
Atomism () is a natural philosophy proposing that the physical universe is composed of fundamental indivisible components known as atoms.
References to the concept of atomism and its atoms appeared in both ancient Greek and ancient Indian philo ...
such as
Democritus
Democritus (, ; , ''Dēmókritos'', meaning "chosen of the people"; – ) was an Ancient Greece, Ancient Greek Pre-Socratic philosophy, pre-Socratic philosopher from Abdera, Thrace, Abdera, primarily remembered today for his formulation of an ...
attempted to explain the world in a purely
materialistic way and interpreted religion as a human reaction to natural phenomena,
but did not explicitly deny the gods' existence.
[Vassallo, C. (2018). Atomism and the Worship of Gods: On Democritus' 'Rational' Attitude towards Theology. ''Philosophie antique'', 18 105-125.]
Anaxagoras
Anaxagoras (; , ''Anaxagóras'', 'lord of the assembly'; ) was a Pre-Socratic Greek philosopher. Born in Clazomenae at a time when Asia Minor was under the control of the Persian Empire, Anaxagoras came to Athens. In later life he was charged ...
, whom
Irenaeus
Irenaeus ( or ; ; ) was a Greeks, Greek bishop noted for his role in guiding and expanding Christianity, Christian communities in the southern regions of present-day France and, more widely, for the development of Christian theology by oppos ...
calls "the atheist", was accused of impiety and condemned for stating that "the sun is a type of incandescent stone", an affirmation with which he tried to deny the divinity of the celestial bodies. In the late fifth century BCE, the Greek lyric poet
Diagoras of Melos
Diagoras of Melos () or Diagoras "the Atheist" was a Greece, Greek poet and sophist of the 5th century BC. Throughout antiquity, he was regarded as an atheism, atheist, but very little is known for certain about what he actually believed. Anecdotes ...
was sentenced to death in
Athens
Athens ( ) is the Capital city, capital and List of cities and towns in Greece, largest city of Greece. A significant coastal urban area in the Mediterranean, Athens is also the capital of the Attica (region), Attica region and is the southe ...
under the charge of being a "godless person" (ἄθεος) after he made fun of the
Eleusinian Mysteries
The Eleusinian Mysteries () were initiations held every year for the Cult (religious practice), cult of Demeter and Persephone based at the Panhellenic Sanctuary of Eleusis in ancient Greece. They are considered the "most famous of the secret rel ...
, but he fled the city to escape punishment.
In post-classical antiquity, philosophers such as
Cicero
Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, orator, writer and Academic skeptic, who tried to uphold optimate principles during the political crises tha ...
and
Sextus Empiricus
Sextus Empiricus (, ; ) was a Greek Pyrrhonist philosopher and Empiric school physician with Roman citizenship. His philosophical works are the most complete surviving account of ancient Greek and Roman Pyrrhonism, and because of the argument ...
described Diagoras as an "atheist" who categorically denied the existence of the gods,
[''... nullos esse omnino Diagoras et Theodorus Cyrenaicus ...'' Cicero, Marcus Tullius: ''De natura deorum''. Comments and English text by Richard D. McKirahan. Thomas Library, Bryn Mawr College, 1997, p. 3. ][Sext. Emp. ''Pyr''. hyp. 3.218 cf. ''Math''. 10.50–53.] but in modern scholarship Marek Winiarczyk has defended the view that Diagoras was not an atheist in the modern sense, in a view that has proved influential.
On the other hand, the verdict has been challenged by
Tim Whitmarsh
Timothy John Guy Whitmarsh, (born 23 January 1970) is a British classicist and Regius Professor of Greek at the University of Cambridge. He is best known for his work on the Greek literary culture of the Roman Empire, especially the Second Sophi ...
, who argues that Diagoras rejected the gods on the basis of the problem of evil, and this argument was in turn alluded to in Euripides' fragmentary play ''
Bellerophon
Bellerophon or Bellerophontes (; ; lit. "slayer of Belleros") or Hipponous (; lit. "horse-knower"), was a divine Corinthian hero of Greek mythology, the son of Poseidon and Eurynome, and the foster son of Glaukos. He was "the greatest her ...
''.
[Whitmarsh, T. (2016). Diagoras, Bellerophon and the Siege of Olympus. ''The Journal of Hellenic Studies'', 136 182–186.] A fragment from a lost Attic drama that featured
Sisyphus
In Greek mythology, Sisyphus or Sisyphos (; Ancient Greek: Σίσυφος ''Sísyphos'') was the founder and king of Ancient Corinth, Ephyra (now known as Corinth). He reveals Zeus's abduction of Aegina (mythology), Aegina to the river god As ...
, which has been attributed to both
Critias
Critias (; , ''Kritias''; – 403 BC) was an ancient Athenian poet, philosopher and political leader. He is known today for being a student of Socrates, a writer of some regard, and for becoming the leader of the Thirty Tyrants, who ruled Athens ...
and
Euripides
Euripides () was a Greek tragedy, tragedian of classical Athens. Along with Aeschylus and Sophocles, he is one of the three ancient Greek tragedians for whom any plays have survived in full. Some ancient scholars attributed ninety-five plays to ...
, claims that a clever man invented "the fear of the gods" in order to frighten people into behaving morally.
[Davies, M. (1989). Sisyphus and the Invention of Religion (Critias ''TrGF'' 1 (43) F 19 = B 25 DK). ''BICS'' 32, 16-32.]
Protagoras
Protagoras ( ; ; )Guthrie, p. 262–263. was a pre-Socratic Greek philosopher and rhetorical theorist. He is numbered as one of the sophists by Plato. In his dialogue '' Protagoras'', Plato credits him with inventing the role of the professional ...
has sometimes been taken to be an atheist, but rather espoused agnostic views, commenting that "Concerning the gods I am unable to discover whether they exist or not, or what they are like in form; for there are many hindrances to knowledge, the obscurity of the subject and the brevity of human life."
The Athenian public associated Socrates () with the trends in pre-Socratic philosophy towards naturalistic inquiry and the rejection of divine explanations for phenomena.
Aristophanes
Aristophanes (; ; ) was an Ancient Greece, Ancient Greek Ancient Greek comedy, comic playwright from Classical Athens, Athens. He wrote in total forty plays, of which eleven survive virtually complete today. The majority of his surviving play ...
' comic play ''
The Clouds
''The Clouds'' (, ''Nephelai'') is a Greek comedy play written by the playwright Aristophanes. A lampooning of intellectual fashions in classical Athens, it was originally produced at the City Dionysia in 423BC and was not as well received as th ...
'' (performed 423 BCE) portrays Socrates as teaching his students that the traditional Greek deities do not exist.
Socrates was later tried and executed under the charge of not believing in the gods of the state and instead worshipping foreign gods.
Socrates himself vehemently denied the charges of atheism at his trial.
[ in ] From a survey of these 5th-century BCE philosophers,
David Sedley
David Neil Sedley FBA (born 30 May 1947) is a British philosopher and historian of philosophy. He was the seventh Laurence Professor of Ancient Philosophy at Cambridge University.
Early life
Sedley was educated at Trinity College, Oxford wher ...
has concluded that none of them openly defended radical atheism, but since Classical sources clearly attest to radical atheist ideas Athens probably had an "atheist underground".
[Sedley, D. (2013). The atheist underground. In Harte and M. Lane (edd.), ''Politeia in Greek and Roman Philosophy''. Cambridge, 329-48.]
Religious skepticism continued into the
Hellenistic period
In classical antiquity, the Hellenistic period covers the time in Greek history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra VII in 30 BC, which was followed by the ascendancy of the R ...
, and from this period the most important Greek thinker in the development of atheism was the philosopher Epicurus ().
Drawing on the ideas of Democritus and the Atomists, he espoused a materialistic philosophy according to which the universe was governed by the laws of chance without the need for divine intervention (see
scientific determinism
Determinism is the metaphysical view that all events within the universe (or multiverse) can occur only in one possible way. Deterministic theories throughout the history of philosophy have developed from diverse and sometimes overlapping mot ...
).
Although Epicurus still maintained that the gods existed,
he believed that they were uninterested in human affairs.
The aim of the Epicureans was to attain ''
ataraxia
In Ancient Greek philosophy, ( Greek: , from indicating negation or absence and with the abstract noun suffix ), generally translated as , , , or , is a lucid state of robust equanimity characterized by ongoing freedom from distress and wo ...
'' ("peace of mind") and one important way of doing this was by exposing fear of divine wrath as irrational. The Epicureans also denied the existence of an afterlife and the need to fear divine punishment after death.
Euhemerus
Euhemerus (; also spelled Euemeros or Evemerus; ''Euhēmeros'', "happy; prosperous"; late fourth century BC) was a Greek mythographer at the court of Cassander, the king of Macedon. Euhemerus' birthplace is disputed, with Messina in Sicily as ...
() published his view that the gods were only the deified rulers and founders of the past. Although not strictly an atheist, Euhemerus was later criticized by
Plutarch
Plutarch (; , ''Ploútarchos'', ; – 120s) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo (Delphi), Temple of Apollo in Delphi. He is known primarily for his ''Parallel Lives'', ...
for having "spread atheism over the whole inhabited earth by obliterating the gods". In the 3rd century BCE, the
Hellenistic
In classical antiquity, the Hellenistic period covers the time in Greek history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra VII in 30 BC, which was followed by the ascendancy of the R ...
philosophers
Theodorus Cyrenaicus and
Strato of Lampsacus
Strato of Lampsacus (; , – ) was a Peripatetic philosopher, and the third director ( scholarch) of the Lyceum after the death of Theophrastus. He devoted himself especially to the study of natural science, and increased the naturalistic eleme ...
were also reputed to deny the existence of the gods. The
Pyrrhonist philosopher
Sextus Empiricus
Sextus Empiricus (, ; ) was a Greek Pyrrhonist philosopher and Empiric school physician with Roman citizenship. His philosophical works are the most complete surviving account of ancient Greek and Roman Pyrrhonism, and because of the argument ...
() compiled a large number of ancient arguments against the existence of gods, recommending that one should
suspend judgment regarding the matter. His relatively large volume of surviving works had a lasting influence on later philosophers.
[Stein, Gordon (Ed.) (1980).]
The History of Freethought and Atheism
". ''An Anthology of Atheism and Rationalism''. New York: Prometheus. Retrieved April 3, 2007.
The meaning of "atheist" changed over the course of classical antiquity.
Early Christians
Early Christianity, otherwise called the Early Church or Paleo-Christianity, describes the historical era of the Christian religion up to the First Council of Nicaea in 325. Christianity spread from the Levant, across the Roman Empire, and bey ...
were widely reviled as "atheists" because they did not believe in the existence of the Graeco-Roman deities.
During the
Roman Empire
The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
, Christians were executed for their rejection of the
Roman gods
The Roman deities most widely known today are those the Romans identified with Greek counterparts, integrating Greek myths, iconography, and sometimes religious practices into Roman culture, including Latin literature, Roman art, and relig ...
in general and the
Imperial cult of ancient Rome
The Roman imperial cult () identified Roman emperor, emperors and some members of their families with the Divine right of kings, divinely sanctioned authority (''auctoritas'') of the Roman State. Its framework was based on Roman and Greek preced ...
in particular.
[Maycock, A.L. and Ronald Knox (2003). ]
Inquisition from Its Establishment to the Great Schism: An Introductory Study
''. . There was, however, a heavy struggle between Christians and pagans, in which each group accused the other of atheism, for not practicing the religion which they considered correct.
When Christianity became the state religion of Rome under
Theodosius I
Theodosius I ( ; 11 January 347 – 17 January 395), also known as Theodosius the Great, was Roman emperor from 379 to 395. He won two civil wars and was instrumental in establishing the Nicene Creed as the orthodox doctrine for Nicene C ...
in 381,
heresy
Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy.
Heresy in Heresy in Christian ...
became a punishable offense.
Early Middle Ages to the Renaissance
During the
Early Middle Ages
The Early Middle Ages (or early medieval period), sometimes controversially referred to as the Dark Ages (historiography), Dark Ages, is typically regarded by historians as lasting from the late 5th to the 10th century. They marked the start o ...
, the
Islamic world
The terms Islamic world and Muslim world commonly refer to the Islamic community, which is also known as the Ummah. This consists of all those who adhere to the religious beliefs, politics, and laws of Islam or to societies in which Islam is ...
experienced a
Golden Age
The term Golden Age comes from Greek mythology, particularly the ''Works and Days'' of Hesiod, and is part of the description of temporal decline of the state of peoples through five Ages of Man, Ages, Gold being the first and the one during wh ...
. Along with advances in science and philosophy, Arab and Persian lands produced rationalists who were skeptical about revealed religion, such as
Muhammad al Warraq
Abu Isa al-Warraq, full name ''Abū ʿĪsā Muḥammad ibn Hārūn al-Warrāq'' (, died 861–2 AD/247 Islamic calendar, AH), was a 9th-century Arab people, Arab skeptic scholar and Criticism of Islam, critic of Islam and religion in general. He ...
(fl. 9th century),
Ibn al-Rawandi
Abu al-Hasan Ahmad ibn Yahya ibn Ishaq al-Rawandi (), commonly known as Ibn al-Rawandi (; 827–911 CEAl-Zandaqa Wal Zanadiqa, by Mohammad Abd-El Hamid Al-Hamad, First edition 1999, Dar Al-Taliaa Al-Jadida, Syria (Arabic)), was a scholar and ...
(827–911), and
Abu Bakr al-Razi
Abū Bakr al-Rāzī, also known as Rhazes (full name: ), , was a Persian physician, philosopher and alchemist who lived during the Islamic Golden Age. He is widely regarded as one of the most important figures in the history of medicine, and al ...
(–925), as well as outspoken atheists such as
al-Maʿarri
Abu al-Ala al-Ma'arri, ,(December 973May 1057), also known by his Latin name Abulola Moarrensis; was an Arab philosopher, poet, and writer from Ma'arrat al-Nu'man, Syria. Because of his irreligious worldview, he is known as one of the "forem ...
(973–1058). Al-Ma'arri wrote and taught that religion itself was a "fable invented by the ancients"
[Reynold Alleyne Nicholson, 1962, ''A Literary History of the Arabs'', p. 318. Routledge] and that humans were "of two sorts: those with brains, but no religion, and those with religion, but no brains". Despite the fact that these authors were relatively prolific writers, little of their work survives, mainly being preserved through quotations and excerpts in later works by Muslim
apologists attempting to refute them.

In Europe, the espousal of atheistic views was rare during the Early Middle Ages and
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
(see
Medieval Inquisition
The Medieval Inquisition was a series of Inquisitions (Catholic Church bodies charged with suppressing heresy) from around 1184, including the Episcopal Inquisition (1184–1230s) and later the Papal Inquisition (1230s). The Medieval Inquisition ...
).
There were, however, movements within this period that furthered heterodox conceptions of the Christian god, including differing views of the nature, transcendence, and knowability of God. William of Ockham inspired anti-metaphysical tendencies with his nominalism, nominalist limitation of human knowledge to singular objects, and asserted that the divine essence could not be intuitively or rationally apprehended by human intellect. Sects deemed heretical such as the Waldensians were also accused of being atheistic.
The resulting division between Faith and rationality, faith and reason influenced later radical and reformist theologians.
The Renaissance did much to expand the scope of free thought and skeptical inquiry. Individuals such as Leonardo da Vinci sought experimentation as a means of explanation instead of Appeal to authority, arguments from religious authority. Critics of religion and the Church during this time included Niccolò Machiavelli who, although never avowing his atheism in his writings, is claimed to be an athiest. Other alleged critics are Bonaventure des Périers, Michel de Montaigne, and François Rabelais.
Early modern period
Historian Geoffrey Blainey wrote that the Protestant Reformation, Reformation had paved the way for atheists by attacking the authority of the Catholic Church, which in turn "quietly inspired other thinkers to attack the authority of the new Protestant churches". Deism gained influence in France, Prussia, and England. In 1546, French scholar Etienne Dolet was executed upon accusation of being an atheist.
The philosopher Baruch Spinoza was "probably the first well known 'semi-atheist' to announce himself in a Christian land in the modern era", according to Blainey. Spinoza believed that natural laws explained the workings of the universe. In 1661, he published his ''Short Treatise on God''.
Criticism of Christianity became increasingly frequent in the 17th and 18th centuries, especially in France and England. Some Protestant thinkers, such as Thomas Hobbes, espoused a materialist philosophy and skepticism toward supernatural occurrences. By the late 17th century, deism came to be openly espoused by intellectuals. The first known explicit atheist was the German critic of religion Matthias Knutzen in his three writings of 1674. He was followed by two other explicit atheist writers, the Polish ex-Jesuit philosopher Kazimierz Łyszczyński (who most likely authored the world's first treatise on the non-existence of God) and in the 1720s by the French priest Jean Meslier.

In the course of the 18th century, other openly atheistic thinkers followed, such as
Baron d'Holbach
Paul Thiry, Baron d'Holbach (; ; 8 December 1723 – 21 January 1789), known as d'Holbach, was a Franco-German philosopher, encyclopedist and writer, who was a prominent figure in the French Enlightenment. He was born in Edesheim, near Landau ...
, Jacques-André Naigeon, and other French materialism, French materialists.
Baron d'Holbach
Paul Thiry, Baron d'Holbach (; ; 8 December 1723 – 21 January 1789), known as d'Holbach, was a Franco-German philosopher, encyclopedist and writer, who was a prominent figure in the French Enlightenment. He was born in Edesheim, near Landau ...
was a prominent figure in the French Enlightenment who is best known for his atheism and for his voluminous writings against religion, the most famous of them being ''The System of Nature'' (1770) but also ''Christianity Unveiled''. "The source of man's unhappiness is his ignorance of Nature. The pertinacity with which he clings to blind opinions imbibed in his infancy, which interweave themselves with his existence, the consequent prejudice that warps his mind, that prevents its expansion, that renders him the slave of fiction, appears to doom him to continual error." In Great Britain, William Hammon and physician Mathew Turner authored a pamphlet in response to Joseph Priestley's ''Letters to a Philosophical Unbeliever''. Theirs was the first work in English to openly defend atheism, and implied that established sentiment of Christianity made speaking up in defense of atheism an act with a reasonable expectation of public punishment.
Although Voltaire is widely considered to have strongly contributed to atheistic thinking during the Revolution, he also considered fear of God to have discouraged further disorder, having said "If God did not exist, it would be necessary to invent him." The philosopher David Hume developed a skeptical epistemology grounded in empiricism, and Immanuel Kant's philosophy has strongly questioned the very possibility of metaphysical knowledge. Both philosophers undermined the metaphysical basis of natural theology and criticized classical arguments for the existence of God.
One goal of the French Revolution was a restructuring and subordination of the clergy with respect to the state through the Civil Constitution of the Clergy. Attempts to enforce it led to anticlericalism, anti-clerical violence and the expulsion of many clerics from France, lasting until the Thermidorian Reaction. The radical Jacobin Club, Jacobins seized power in 1793. The Jacobins were deists and introduced the Cult of the Supreme Being as a new French state religion.
In the latter half of the 19th century, atheism rose to prominence under the influence of rationalism, rationalistic and Freethought, freethinking philosophers. German philosopher Ludwig Feuerbach considered God to be a human invention and religious activities to be wish-fulfillment. He influenced philosophers such as Karl Marx and Friedrich Nietzsche, who denied the existence of deities and were critical of religion. In 1842, George Holyoake was the last person imprisoned in Great Britain due to atheist beliefs. Stephen Law notes that he may have also been the first imprisoned on such a charge. Law states that Holyoake "first coined the term 'secularism'".
20th century

Atheism advanced in many societies in the 20th century. Atheistic thought found recognition in a wide variety of other, broader philosophies, such as Marxism and religion, Marxism, logical positivism, Atheist existentialism, existentialism, secular humanism, humanism and Atheist feminism, feminism,
[ in ] and the general scientific movement.
Proponents of naturalism (philosophy), naturalism such as
Bertrand Russell
Bertrand Arthur William Russell, 3rd Earl Russell, (18 May 1872 – 2 February 1970) was a British philosopher, logician, mathematician, and public intellectual. He had influence on mathematics, logic, set theory, and various areas of analytic ...
and John Dewey emphatically rejected belief in God. Analytical philosophy, Analytical philosophers such as John Niemeyer Findlay, J.N. Findlay and
J.J.C. Smart argued against the existence of God.
State atheism emerged in Eastern Europe and Asia, particularly in the Soviet Union under Vladimir Lenin and Joseph Stalin, and in China#Chinese Communist Party, Communist China under Mao Zedong. Atheist and anti-religious policies in the Soviet Union included Soviet anti-religious legislation, numerous legislative acts, the outlawing of religious instruction in the schools, and the emergence of the League of Militant Atheists.
[Geoffrey Blainey; ''A Short History of Christianity''; Viking; 2011; p. 494] Stalin softened his opposition to the Orthodox church in order to improve public acceptance of his regime during the second world war.
In 1966, ''Time (magazine), Time'' magazine asked "Is God Dead?" in response to the Death of God theological movement, citing the estimation that nearly half of all people in the world lived under an anti-religious power, and millions more in Africa, Asia, and South America seemed to lack knowledge of the Christian view of theology.
Leaders like Periyar E.V. Ramasamy, a prominent atheist leader of
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
, fought against
Hinduism
Hinduism () is an Hypernymy and hyponymy, umbrella term for a range of Indian religions, Indian List of religions and spiritual traditions#Indian religions, religious and spiritual traditions (Sampradaya, ''sampradaya''s) that are unified ...
and Brahmins for discriminating and dividing people in the name of caste and religion. In the United States, atheist Vashti McCollum was the plaintiff in a 1948 Supreme Court of the United States, Supreme Court case that struck down religious education in US public schools. Madalyn Murray O'Hair was one of the most influential American atheists; she brought forth the 1963 Supreme Court case ''Murray v. Curlett'' which banned compulsory prayer in public schools. The Freedom From Religion Foundation was co-founded by Anne Nicol Gaylor and her daughter, Annie Laurie Gaylor, in 1976 in the United States. It promotes the separation of church and state.
21st century
"New Atheism" is a movement among some early-21st-century atheist writers who have advocated the view that "religion should not be tolerated but should be countered, criticized, and exposed by rational argument wherever its influence arises." The movement is commonly associated with
Sam Harris
Samuel Benjamin Harris (born April 9, 1967) is an American philosopher, neuroscientist, author, and podcast host. His work touches on a range of topics, including rationality, religion, ethics, free will, determinism, neuroscience, meditation ...
,
Daniel Dennett
Daniel Clement Dennett III (March 28, 1942 – April 19, 2024) was an American philosopher and cognitive scientist. His research centered on the philosophy of mind, the philosophy of science, and the philosophy of biology, particularly as those ...
, Richard Dawkins, Christopher Hitchens, and Victor J. Stenger. The religiously motivated terrorist September 11 attacks, events of 9/11 and the partially successful attempts to change the American science curriculum to include Creationism, creationist ideas, together with support for those ideas from the religious conservatism, religious right, have been cited by "new" atheists as evidence of a need to move toward a more secular society.
Melbourne hosted the first Global Atheist Convention in 2010 (branded as the largest event of its kind in the world), sponsored by the Atheist Foundation of Australia and Atheist Alliance International. It took place at the Melbourne Convention & Exhibition Centre from 12 to 14 March that year. Over 2,000 delegates attended, with all available tickets selling out more than five weeks prior to the event. A second conference was held, also in Melbourne, from 13 to 15 April 2012. A third convention, planned for February 2018, was cancelled, apparently because of insufficient interest.
Demographics
It is difficult to quantify the number of atheists in the world. Respondents to religious-belief polls may define "atheism" differently or draw different distinctions between ''atheism'', non-religious beliefs, and non-theistic religious and spiritual beliefs. A 2010 survey published in ''Encyclopædia Britannica'' found that the non-religious made up about 9.6% of the world's population, and atheists about 2.0%. This figure did not include those who follow atheistic religions, such as some Buddhists.
The average annual change for atheism from 2000 to 2010 was −0.17%.
Scholars have indicated that Desecularization, global atheism may be in decline as a percentage of the global population due to irreligious countries having the lowest birth rates in the world and religious countries generally having higher birth rates.
[Shall the Religious Inherit the Earth?: Demography and Politics in the Twenty-First Century](_blank)
by Eric Kaufmann, Belfer Center, Harvard University/Birkbeck College, University of London[London: A Rising Island of Religion in a Secular Sea](_blank)
by Eric Kaufmann, ''Huffington Post'', February 20, 2013
According to global WIN/GIA, Win-Gallup International studies, 13% of respondents were "convinced atheists" in 2012,
11% were "convinced atheists" in 2015,
and in 2017, 9% were "convinced atheists".
, the top 10 surveyed countries with people who viewed themselves as "convinced atheists" were China (47%), Japan (31%), the Czech Republic (30%), France (29%), South Korea (15%), Germany (15%), Netherlands (14%), Austria (10%), Iceland (10%), Australia (10%), and Republic of Ireland, Ireland (10%). A 2012 study by the NORC found that East Germany had the highest percentage of atheists while Czech Republic had the second highest amount. The number of atheists per country is strongly correlated with the level of security for both the individual and society, with some exceptions.
Europe

According to the 2010 Eurobarometer Poll, the percentage of those polled who agreed with the statement "you don't believe there is any sort of spirit, God or life force" varied from a high percentage in France (40%), Czech Republic (37%), Sweden (34%), Netherlands (30%), and Estonia (29%); medium-high percentage in Germany (27%), Belgium (27%), UK (25%); to very low in Poland (5%), Greece (4%), Cyprus (3%), Malta (2%), and Romania (1%), with the European Union as a whole at 20%.
In a 2012 Eurobarometer poll on discrimination in the European Union, 16% of those polled considered themselves non-believers/agnostics, and 7% considered themselves atheists.
According to a Pew Research Center survey in 2012, about 18% of Europeans are religiously unaffiliated, including agnostics and atheists.
According to the same survey, the religiously unaffiliated are the majority of the population only in two European countries: Czech Republic (75%) and Estonia (60%).
Asia
There are three countries and Special administrative regions of China, one special administrative region of China or regions where the religiously unaffiliated make up a majority of the population: Irreligion in North Korea, North Korea (71%), Japan (57%), Hong Kong (56%), and China (52%).
Australasia
According to the 2021 Australian census, 2021 Australian Census, 38% of Australians have "no religion", a category that includes atheists. In a 2018 census, 48.2% of New Zealanders reported having no religion, up from 30% in 1991.
United States

According to the World Values Survey, 4.4% of Americans self-identified as atheists in 2014.
However, the same survey showed that 11.1% of all respondents stated "no" when asked if they believed in God.
According to a 2014 report by the Pew Research Center, 3.1% of the US adult population identify as atheist, up from 1.6% in 2007; and within the religiously unaffiliated (or "no religion") demographic, atheists made up 13.6%. According to the 2015 General Sociological Survey the number of atheists and agnostics in the US has remained relatively flat in the past 23 years since in 1991 only 2% identified as atheist and 4% identified as agnostic and in 2014 only 3% identified as atheists and 5% identified as agnostics.
According to the American Family Survey, 34% were found to be religiously unaffiliated in 2017 (23% 'nothing in particular', 6% agnostic, 5% atheist). According to the Pew Research Center, in 2014, 22.8% of the American population does not identify with a religion, including atheists (3.1%) and agnostics (4%). According to a PRRI survey, 24% of the population is unaffiliated. Atheists and agnostics combined make up about a quarter of this unaffiliated demographic. According to a 2023 Pew Research Center study, 28% of Americans are religiously unaffiliated.
Arab world
In recent years, the profile of atheism has risen substantially in the Arab world.
In major cities across the region, such as Cairo, atheists have been organizing in cafés and social media, despite regular crackdowns from authoritarian governments.
A 2012 poll by Gallup International revealed that 5% of Saudis considered themselves to be "convinced atheists".
However, very few young people in the Arab world have atheists in their circle of friends or acquaintances. According to one study, less than 1% did in Morocco, Egypt, Saudi Arabia, or Jordan; only 3% to 7% in the United Arab Emirates, Bahrain, Kuwait, and Palestine.
[Muslim Millennial Attitudes on Religion and Religious Leadership, Arab World](_blank)
, Tabah Foundation, Abu Dhabi, 2016 When asked whether they have "seen or heard traces of atheism in [their] locality, community, and society" only about 3% to 8% responded yes in all the countries surveyed. The only exception was the UAE, with a percentage of 51%.
Attitudes toward atheism
Statistically, atheists are held in poor regard across the globe. Non-atheists seem to implicitly view atheists as prone to exhibit immoral behaviors. In addition, according to a 2016 Pew Research Center publication, 15% of French people, 45% of Americans, and 99% of Indonesians explicitly believe that a person must believe in God to be moral. Pew furthermore noted that, in a U.S. poll, atheists and Muslims tied for the lowest rating among the major religious demographics on a "feeling thermometer". Also, a study of religious college students found that they were more likely to perceive and interact with atheists negatively after considering their mortality, suggesting that these attitudes may be the result of Death anxiety#Religiosity and death anxiety, death anxiety.
Wealth, education, and reasoning style

Various studies have reported positive correlations between levels of education, wealth, and IQ with atheism.
According to 2024 data from Pew Research Center, atheists in the United States are more likely to be white compared to the general U.S. population (77% vs 62%). In a 2008 study, researchers found intelligence to be negatively related to religious belief in Europe and the United States. In a sample of 137 countries, the correlation between national IQ and disbelief in God was found to be 0.60.
According to evolutionary psychologist Nigel Barber, atheism blossoms in places where most people feel economically secure, particularly in the social democracies of Europe, as there is less uncertainty about the future with extensive social safety nets and better health care resulting in a greater quality of life and higher life expectancy. By contrast, in underdeveloped countries, there are far fewer atheists.
The relationship between atheism and IQ, while statistically significant, is not a large one, and the reason for the relationship is not well understood.
One hypothesis is that the negative relationship between IQ and religiosity is mediated by individual differences in nonconformity; in many countries, religious belief is a conformist choice, and there is evidence that more intelligent people are less likely to conform. Another theory is that people of higher IQ are more likely to engage in analytical reasoning, and that disbelief in religion results from the application of higher-level analytical reasoning to the assessment of religious claims.
In a 2017 study, it was shown that compared to religious individuals, atheists have higher reasoning capacities and this difference seemed to be unrelated to sociodemographic factors such as age, education and country of origin. In a 2015 study, researchers found that atheists score higher on cognitive reflection tests than theists, the authors wrote that "The fact that atheists score higher agrees with the literature showing that belief is an automatic manifestation of the mind and its default mode. Disbelieving seems to require deliberative cognitive ability." A 2016 study, in which 4 new studies were reported and a meta-analysis of all previous research on the topic was performed, found that self-identified atheists scored 18.7% higher than theists on the cognitive reflection test and there is a negative correlation between religiosity and analytical thinking. The authors note that recently "it has been argued that analytic thinkers are not actually less religious; rather, the putative association may be a result of religiosity typically being measured after analytic thinking (an order effect)," however, they state "Our results indicate that the association between analytical thinking and religious disbelief is not caused by a simple order effect. There is good evidence that atheists and agnostics are more reflective than religious believers." The study defined reflectivity as personal judgement beyond intuition, analytical and scientific reasoning, and lower receptivity to absurd, illogical claims. This "analytic atheist" effect has also been found among academic philosophers, even when controlling for about a dozen potential confounds such as education.
Some studies do not detect this correlation between atheism and analytic thinking in all of the countries that they study, suggesting that the relationship between analytic thinking and atheism may depend on culture. There is also evidence that gender may be involved in what has been termed the analytic atheist effect; because men have been found more likely to endorse atheism, and men often perform slightly better on tests of analytic thinking, when not controlling for variables such as math anxiety,
the correlation between atheism and analytic reasoning may be partly explained by whatever explains observed gender differences in analytic thinking.
See also
* Antireligion
* Apatheism
* Brights movement
* Lists of atheists
* National Secular Society
* Outline of atheism
References
Notes
Citations
Sources
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Further reading
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* Charles Bradlaugh, Bradlaugh, Charles, Annie Besant and others. (1884) ''The Atheistic Platform: 12 Lectures''. London: Freethought Publishing
The atheistic platform, 12 lectures by C. Bradlaugh [and others].
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* Smolkin, Victoria. ''A Sacred Space is Never Empty: A History of Soviet Atheism'' (Princeton UP, 2018
online reviews
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External links
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The New Atheists ''Internet Encyclopedia of Philosophy''. Includes links to organizations and websites.
Religion & Ethics—Atheismat bbc.co.uk
Secular Web library Library of both historical and modern writings, a comprehensive online resource for freely available material on atheism.
* Colin McGinn, McGinn, Colin
"Why I am an Atheist"
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Atheism,