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The distinction between subject and object is a basic idea of philosophy. *A subject is a being that exercises
agency Agency may refer to: Organizations * Institution, governmental or others ** Advertising agency or marketing agency, a service business dedicated to creating, planning and handling advertising for its clients ** Employment agency, a business that ...
, undergoes conscious experiences, and is situated in relation to other things that exist outside itself; thus, a subject is any individual,
person A person (plural, : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of pr ...
, or observer *An object is any of the things observed or experienced by a subject, which may even include other beings (thus, from their own points of view: other subjects) A simple common differentiation for ''subject'' and ''object'' is: an observer versus a thing that is observed. In certain cases involving
personhood Personhood or personality is the status of being a person. Defining personhood is a controversial topic in philosophy and law and is closely tied with legal and political concepts of citizenship, equality, and liberty. According to law, only a leg ...
, subjects and objects can be considered interchangeable where each label is applied only from one or the other point of view. Subjects and objects are related to the philosophical distinction between
subjectivity and objectivity A sociological theory is a that intends to consider, analyze, and/or explain objects of social reality from a sociological perspective,Macionis, John and Linda M. Gerber. 2010. ''Sociology'' (7th Canadian ed.). Upper Saddle River, NJ: Pearson ...
: the existence of knowledge, ideas, or information either dependent upon a subject (subjectivity) or independent from any subject (objectivity).


Etymology

In English the word ''object'' is derived from the
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...
''objectus'' (p.p. of ''obicere'') with the meaning "to throw, or put before or against", from ''ob-'', "against", and the root ''jacere'', "to throw". Some other related English words include ''objectify'' (to reify), ''objective'' (a future
reference Reference is a relationship between objects in which one object designates, or acts as a means by which to connect to or link to, another object. The first object in this relation is said to ''refer to'' the second object. It is called a '' name'' ...
), and ''objection'' (an expression of protest). ''Subject'' uses the same root, but with the prefix ''sub-'', meaning "under".


Terms and usage

Broadly construed, the word ''object'' names a maximally general category, whose members are eligible for being referred to, quantified over and thought of. Terms similar to the broad notion of ''object'' include ''thing'', ''being'', ''entity'', ''item'', ''existent'', ''term'', ''unit'', and ''individual''. In ordinary language, one is inclined to call only a material object "object". In certain contexts, it may be socially inappropriate to apply the word ''object'' to animate beings, especially to human beings, while the words ''entity'' and ''being'' are more acceptable. Some authors use ''object'' in contrast to ''
property Property is a system of rights that gives people legal control of valuable things, and also refers to the valuable things themselves. Depending on the nature of the property, an owner of property may have the right to consume, alter, share, r ...
''; that is to say, an object is an entity that is not a
property Property is a system of rights that gives people legal control of valuable things, and also refers to the valuable things themselves. Depending on the nature of the property, an owner of property may have the right to consume, alter, share, r ...
. Objects differ from properties in that objects cannot be referred to by predicates. Some philosophers include abstracts objects as counting as objects, while others do not. Terms similar to such usage of ''object'' include ''substance'', ''individual'', and ''particular''. There are two definitions of ''object''. The first definition holds that an object is an entity that fails to experience and that is not conscious. The second definition holds that an object is an entity experienced. The second definition differs from the first one in that the second definition allows for a subject to be an object at the same time. One approach to defining an object is in terms of its properties and
relations Relation or relations may refer to: General uses *International relations, the study of interconnection of politics, economics, and law on a global level *Interpersonal relationship, association or acquaintance between two or more people *Public ...
. Descriptions of all bodies, minds, and persons must be in terms of their properties and relations. For example, it seems that the only way to describe an apple is by describing its properties and how it is related to other things, such as its shape, size, composition, color, temperature, etc., while its relations may include "on the table", "in the room" and "being bigger than other apples".
Metaphysical Metaphysics is the branch of philosophy that studies the fundamental nature of reality, the first principles of being, identity and change, space and time, causality, necessity, and possibility. It includes questions about the nature of consci ...
frameworks also differ in whether they consider objects existing independently of their
properties Property is the ownership of land, resources, improvements or other tangible objects, or intellectual property. Property may also refer to: Mathematics * Property (mathematics) Philosophy and science * Property (philosophy), in philosophy an ...
and, if so, in what way. The notion of an object must address two problems: the change problems and the problems of substances. Two leading theories about objecthood are
substance theory Substance theory, or substance–attribute theory, is an ontological theory positing that objects are constituted each by a ''substance'' and properties borne by the substance but distinct from it. In this role, a substance can be referred to as ...
, wherein substances (objects) are distinct from their properties, and bundle theory, wherein objects are no more than bundles of their properties.


René Descartes

The formal separation between subject and object in the Western world corresponds to the dualistic framework, in the
early modern philosophy Early modern philosophy (also classical modern philosophy)Richard Schacht, ''Classical Modern Philosophers: Descartes to Kant'', Routledge, 2013, p. 1: "Seven men have come to stand out from all of their counterparts in what has come to be known ...
of
René Descartes René Descartes ( or ; ; Latinized: Renatus Cartesius; 31 March 1596 – 11 February 1650) was a French philosopher, scientist, and mathematician, widely considered a seminal figure in the emergence of modern philosophy and science. Mathe ...
, between
thought In their most common sense, the terms thought and thinking refer to conscious cognitive processes that can happen independently of sensory stimulation. Their most paradigmatic forms are judging, reasoning, concept formation, problem solving, an ...
and
extension Extension, extend or extended may refer to: Mathematics Logic or set theory * Axiom of extensionality * Extensible cardinal * Extension (model theory) * Extension (predicate logic), the set of tuples of values that satisfy the predicate * Ext ...
(in common language, mind and matter). Descartes believed that thought (
subjectivity Subjectivity in a philosophical context has to do with a lack of objective reality. Subjectivity has been given various and ambiguous definitions by differing sources as it is not often the focal point of philosophical discourse.Bykova, Marina ...
) was the essence of the
mind The mind is the set of faculties responsible for all mental phenomena. Often the term is also identified with the phenomena themselves. These faculties include thought, imagination, memory, will, and sensation. They are responsible for vario ...
, and that extension (the occupation of space) was the essence of matter. For modern philosophers like Descartes,
consciousness Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scien ...
is a state of
cognition Cognition refers to "the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thoug ...
experienced by the subject—whose existence can never be doubted as its ability to doubt (and think) proves that it exists. On the other hand, he argues that the object(s) which a subject perceives may not have
real Real may refer to: Currencies * Brazilian real (R$) * Central American Republic real * Mexican real * Portuguese real * Spanish real * Spanish colonial real Music Albums * ''Real'' (L'Arc-en-Ciel album) (2000) * ''Real'' (Bright album) (201 ...
or full existence or value, independent of that observing subject.


German idealism

''Subject'' as a key-term in thinking about human
consciousness Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scien ...
began its career with the German idealists, in response to
David Hume David Hume (; born David Home; 7 May 1711 NS (26 April 1711 OS) – 25 August 1776) Cranston, Maurice, and Thomas Edmund Jessop. 2020 999br>David Hume" ''Encyclopædia Britannica''. Retrieved 18 May 2020. was a Scottish Enlightenment phil ...
's radical
skepticism Skepticism, also spelled scepticism, 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 ...
. The idealists' starting point is Hume's conclusion that there is nothing to the self over and above a big, fleeting bundle of perceptions. The next step was to ask how this undifferentiated bundle comes to be experienced as a unity – as a single ''subject''. Hume had offered the following proposal: :"''...the imagination must by long custom acquire the same method of thinking, and run along the parts of space and time in conceiving its objects.''
Kant Immanuel 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, ethics, and aest ...
,
Hegel Georg Wilhelm Friedrich Hegel (; ; 27 August 1770 – 14 November 1831) was a German philosopher. He is one of the most important figures in German idealism and one of the founding figures of modern Western philosophy. His influence extends ...
and their successors sought to flesh out the process by which the subject is constituted out of the flow of sense impressions. Hegel, for example, stated in his Preface to the ''
Phenomenology of Spirit ''The Phenomenology of Spirit'' (german: Phänomenologie des Geistes) is the most widely-discussed philosophical work of Georg Wilhelm Friedrich Hegel; its German title can be translated as either ''The Phenomenology of Spirit'' or ''The Phenomen ...
'' that a subject is constituted by "the process of reflectively mediating itself with itself." Hegel begins his definition of the subject at a standpoint derived from Aristotelian physics: "the unmoved which is also ''self-moving''" (Preface, para. 22). That is, what is not moved by an outside force, but which propels itself, has a ''
prima facie ''Prima facie'' (; ) is a Latin expression meaning ''at first sight'' or ''based on first impression''. The literal translation would be 'at first face' or 'at first appearance', from the feminine forms of ''primus'' ('first') and ''facies'' (' ...
'' case for subjectivity. Hegel's next step, however, is to identify this power to move, this unrest that is the subject, as ''pure negativity''. Subjective self-motion, for Hegel, comes not from any pure or simple kernel of authentic individuality, but rather, it is ::"...the bifurcation of the simple; it is the doubling which sets up opposition, and then again the negation of this indifferent diversity and of its anti-thesis" (Preface, para. 18). The Hegelian subject's ''modus operandi'' is therefore cutting, splitting and introducing distinctions by injecting negation into the flow of sense-perceptions. Subjectivity is thus a kind of structural effect – what happens when Nature is diffused, refracted around a field of negativity and the "unity of the subject" for Hegel, is in fact a second-order effect, a "negation of negation". The subject experiences itself as a unity only by purposively negating the very diversity it itself had produced. The Hegelian subject may therefore be characterized either as "self-restoring sameness" or else as "reflection in otherness within itself" (Preface, para. 18).


American pragmatism

Charles S. Peirce of the late-modern American philosophical school of
pragmatism Pragmatism is a philosophical tradition that considers words and thought as tools and instruments for prediction, problem solving, and action, and rejects the idea that the function of thought is to describe, represent, or mirror reality. ...
, defines the broad notion of an object as anything that we can think or talk about. In a general sense it is any
entity An entity is something that exists as itself, as a subject or as an object, actually or potentially, concretely or abstractly, physically or not. It need not be of material existence. In particular, abstractions and legal fictions are usually r ...
: the
pyramids A pyramid (from el, πυραμίς ') is a structure whose outer surfaces are triangular and converge to a single step at the top, making the shape roughly a pyramid in the geometric sense. The base of a pyramid can be trilateral, quadrilat ...
, gods,
Socrates Socrates (; ; –399 BC) was a Greek philosopher from Athens who is credited as the founder of Western philosophy and among the first moral philosophers of the ethical tradition of thought. An enigmatic figure, Socrates authored no te ...
, the nearest star system, the number
seven 7 is a number, numeral, and glyph. 7 or seven may also refer to: * AD 7, the seventh year of the AD era * 7 BC, the seventh year before the AD era * The month of July Music Artists * Seven (Swiss singer) (born 1978), a Swiss recording artist ...
, a disbelief in
predestination Predestination, in theology, is the doctrine that all events have been willed by God, usually with reference to the eventual fate of the individual soul. Explanations of predestination often seek to address the paradox of free will, whereby G ...
, or the fear of cats.


Late modern and contemporary philosophy

In
Continental philosophy Continental philosophy is a term used to describe some philosophers and philosophical traditions that do not fall under the umbrella of analytic philosophy. However, there is no academic consensus on the definition of continental philosophy. Prio ...
, the subject is a central term in debates over the nature of the
self The self is an individual as the object of that individual’s own reflective consciousness. Since the ''self'' is a reference by a subject to the same subject, this reference is necessarily subjective. The sense of having a self—or ''selfhood ...
. In
Analytic philosophy Analytic philosophy is a branch and tradition of philosophy using analysis, popular in the Western world and particularly the Anglosphere, which began around the turn of the 20th century in the contemporary era in the United Kingdom, United ...
of the Anglo-American tradition, the subject is also central in debates over the nature of subjective experience.


Continental philosophy

The thinking of
Karl Marx Karl Heinrich Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, economist, historian, sociologist, political theorist, journalist, critic of political economy, and socialist revolutionary. His best-known titles are the 1848 ...
and
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 explained as originatin ...
provided a point of departure for questioning the notion of a unitary, autonomous Subject, which for many thinkers in the Continental tradition is seen as the foundation of the liberal theory of the
social contract In moral and political philosophy, the social contract is a theory or model that originated during the Age of Enlightenment and usually, although not always, concerns the legitimacy of the authority of the state over the individual. Social ...
. These thinkers opened up the way for the
deconstruction The term deconstruction refers to approaches to understanding the relationship between text and meaning. It was introduced by the philosopher Jacques Derrida, who defined it as a turn away from Platonism's ideas of "true" forms and essence ...
of the subject as a core-concept of
metaphysics Metaphysics is the branch of philosophy that studies the fundamental nature of reality, the first principles of being, identity and change, space and time, causality, necessity, and possibility. It includes questions about the nature of conscio ...
. Freud's explorations of the
unconscious mind The unconscious mind (or the unconscious) consists of the processes in the mind which occur automatically and are not available to introspection and include thought processes, memories, interests, and motivations. Even though these processes exist ...
added up to a wholesale indictment of
Enlightenment Enlightenment or enlighten may refer to: Age of Enlightenment * Age of Enlightenment, period in Western intellectual history from the late 17th to late 18th century, centered in France but also encompassing (alphabetically by country or culture): ...
notions of subjectivity. Among the most radical re-thinkers of human self-consciousness was
Martin Heidegger Martin Heidegger (; ; 26 September 188926 May 1976) was a German philosopher who is best known for contributions to phenomenology, hermeneutics, and existentialism. He is among the most important and influential philosophers of the 20th centu ...
, whose concept of ''
Dasein ''Dasein'' () (sometimes spelled as Da-sein) is the German word for 'existence'. It is a fundamental concept in the existential philosophy of Martin Heidegger. Heidegger uses the expression ''Dasein'' to refer to the experience of being that is ...
'' or "Being-there" displaces traditional notions of the personal subject altogether. With Heidegger, phenomenology tries to go beyond the classical dichotomy between subject and object, because they are linked by an inseparable and original relationship, in the sense that there can be no world without a subject, nor the subject without world. Jacques Lacan, inspired by Heidegger and
Ferdinand de Saussure Ferdinand de Saussure (; ; 26 November 1857 – 22 February 1913) was a Swiss Linguistics, linguist, Semiotics, semiotician and philosopher. His ideas laid a foundation for many significant developments in both linguistics and semiotics in the 2 ...
, built on Freud's
psychoanalytic PsychoanalysisFrom Greek: + . is a set of theories and therapeutic techniques"What is psychoanalysis? Of course, one is supposed to answer that it is many things — a theory, a research method, a therapy, a body of knowledge. In what might be ...
model of the subject, in which the split subject is constituted by a
double bind A double bind is a dilemma in communication in which an individual (or group) receives two or more reciprocally conflicting messages. In some scenarios (e.g. within families or romantic relationships) this can be emotionally distressing, creating ...
: alienated from
jouissance ''Jouissance'' is a French term meaning "enjoyment", which in Lacanianism is taken in terms both of rights and property, and of sexual orgasm. The latter has a meaning partially lacking in the English word "enjoyment". The term denotes a transgre ...
when they leave
the Real In continental philosophy, the Real refers to the remainder of reality that cannot be expressed, and which surpasses reasoning. In Lacanianism, it is an "impossible" category because of its opposition to expression and inconceivability. ...
, enters into the Imaginary (during the
mirror stage The mirror stage (french: stade du miroir) is a concept in the psychoanalytic theory of Jacques Lacan. The mirror stage is based on the belief that infants recognize themselves in a mirror (literal) or other symbolic contraption which induces ap ...
), and separates from the Other when they come into the realm of language, difference, and
demand In economics, demand is the quantity of a good that consumers are willing and able to purchase at various prices during a given time. The relationship between price and quantity demand is also called the demand curve. Demand for a specific item ...
in
the Symbolic The Symbolic (or Symbolic Order of the Borromean knot) is the order in the unconscious that gives rise to subjectivity and bridges intersubjectivity between two subjects; an example is Jacques Lacan's idea of desire as the desire of the Othe ...
or the Name of the Father. Thinkers such as
structural Marxist Structural Marxism is an approach to Marxist philosophy based on structuralism, primarily associated with the work of the French philosopher Louis Althusser and his students. It was influential in France during the 1960s and 1970s, and also came ...
Louis Althusser Louis Pierre Althusser (, ; ; 16 October 1918 – 22 October 1990) was a French Marxist philosopher. He was born in Algeria and studied at the École normale supérieure in Paris, where he eventually became Professor of Philosophy. Althusser w ...
and
poststructuralist Post-structuralism is a term for philosophical and literary forms of theory that both build upon and reject ideas established by structuralism, the intellectual project that preceded it. Though post-structuralists all present different critiques ...
Michel Foucault Paul-Michel Foucault (, ; ; 15 October 192625 June 1984) was a French philosopher, historian of ideas, writer, political activist, and literary critic. Foucault's theories primarily address the relationship between power and knowledge, and ho ...
theorize the subject as a
social construction Social constructionism is a theory in sociology, social ontology, and communication theory which proposes that certain ideas about physical reality arise from collaborative consensus, instead of pure observation of said reality. The theory ...
, the so-called "poststructuralist subject". According to Althusser, the "subject" is an
ideological An ideology is a set of beliefs or philosophies attributed to a person or group of persons, especially those held for reasons that are not purely epistemic, in which "practical elements are as prominent as theoretical ones." Formerly applied pri ...
construction (more exactly, constructed by the " Ideological State Apparatuses"). One's subjectivity exists, "
always-already Always already is a philosophical term regarding the perception of phenomena by the mind of an observer. The features of a phenomenon that seem to precede any perception of it are said to be "always already" present. Development "Always already" ...
" and is discovered through the process of interpellation. Ideology inaugurates one into being a subject, and every ideology is intended to maintain and glorify its idealized subject, as well as the metaphysical category of the subject itself (see
antihumanism In social theory and philosophy, antihumanism or anti-humanism is a theory that is critical of traditional humanism, traditional ideas about humanity and the human condition. Central to antihumanism is the view that philosophical anthropology a ...
). According to Foucault, it is the "effect" of power and " disciplines" (see ''
Discipline and Punish ''Discipline and Punish: The Birth of the Prison'' (french: Surveiller et punir : Naissance de la prison) is a 1975 book by French philosopher Michel Foucault. It is an analysis of the social and theoretical mechanisms behind the changes tha ...
'': construction of the subject (subjectivation or subjectification, french: assujettissement) as student, soldier, "criminal", etc.)). Foucault believed it was possible to transform oneself; he used the word ''ethopoiein'' from the word ''
ethos Ethos ( or ) is a Greek word meaning "character" that is used to describe the guiding beliefs or ideals that characterize a community, nation, or ideology; and the balance between caution, and passion. The Greeks also used this word to refer to ...
'' to describe the process. Subjectification was a central concept in Gilles Deleuze and
Félix Guattari Pierre-Félix Guattari ( , ; 30 April 1930 – 29 August 1992) was a French psychoanalyst, political philosopher, semiotician, social activist, and screenwriter. He co-founded schizoanalysis with Gilles Deleuze, and ecosophy with Arne Næs ...
's work as well.


Analytic philosophy

Bertrand Russell Bertrand Arthur William Russell, 3rd Earl Russell, (18 May 1872 – 2 February 1970) was a British mathematician, philosopher, logician, and public intellectual. He had a considerable influence on mathematics, logic, set theory, linguistics, ar ...
updated the classical terminology with a term, the '' fact''; "Everything that there is in the world I call a fact." Russell uses the term "fact" in two distinct senses. In 1918, facts are distinct from objects. "I want you to realize that when I speak of a fact I do not mean a particular existing thing, such as Socrates or the rain or the sun. Socrates himself does not render any statement true or false. You might be inclined to suppose that all by himself he would give truth to the statement ‘Socrates existed’, but as a matter of fact that is a mistake." But in 1919, he identified facts with objects. "I mean by ‘fact’ anything complex. If the world contains no simples, then whatever it contains is a fact; if it contains any simples, then facts are whatever it contains except simples... That Socrates was Greek, that he married Xantippe, that he died of drinking the hemlock, are facts that all have something in common, namely, that they are ‘about’ Socrates, who is accordingly said to be a constituent of each of them." Facts, or objects, are opposed to
belief A belief is an attitude that something is the case, or that some proposition is true. In epistemology, philosophers use the term "belief" to refer to attitudes about the world which can be either true or false. To believe something is to take ...
s, which are "subjective" and may be errors on the part of the subject, the knower who is their source and who is certain of himself and little else. All doubt implies the possibility of error and therefore admits the distinction between subjectivity and objectivity. The knower is limited in ability to tell fact from belief, false from true objects and engages in reality testing, an activity that will result in more or less certainty regarding the reality of the object. According to Russell, "we need a description of the fact which would make a given belief true" where "Truth is a property of beliefs." Knowledge is "true beliefs". In contemporary Analytic philosophy, the issue of subject—and more specifically the "point of view" of the subject, or "subjectivity"—has received attention as one of the major intractable problems in
philosophy of mind Philosophy of mind is a branch of philosophy that studies the ontology and nature of the mind and its relationship with the body. The mind–body problem is a paradigmatic issue in philosophy of mind, although a number of other issues are ad ...
(a related issue being the
mind–body problem The mind–body problem is a philosophical debate concerning the relationship between thought and consciousness in the human mind, and the brain as part of the physical body. The debate goes beyond addressing the mere question of how mind and bo ...
). In the essay " What Is It Like to Be a Bat?",
Thomas Nagel Thomas Nagel (; born July 4, 1937) is an American philosopher. He is the University Professor of Philosophy and Law Emeritus at New York University, where he taught from 1980 to 2016. His main areas of philosophical interest are legal philosophy, ...
famously argued that explaining subjective experience—the "what it is like" to be something—is currently beyond the reach of scientific inquiry, because scientific understanding by definition requires an objective perspective, which, according to Nagel, is diametrically opposed to the subjective first-person point of view. Furthermore, one cannot have a definition of objectivity without being connected to subjectivity in the first place since they are mutual and interlocked. In Nagel's book '' The View from Nowhere'', he asks: "What kind of fact is it that I am Thomas Nagel?". Subjects have a perspective but each subject has a unique perspective and this seems to be a fact in Nagel's view from nowhere (i.e. the birds-eye view of the objective description in the universe). The Indian view of "Brahman" suggests that the ultimate and fundamental subject is existence itself, through which each of us as it were "looks out" as an aspect of a frozen and timeless everything, experienced subjectively due to our separated sensory and memory apparatuses. These additional features of subjective experience are often referred to as ''
qualia In philosophy of mind, qualia ( or ; singular form: quale) are defined as individual instances of subjective, conscious experience. The term ''qualia'' derives from the Latin neuter plural form (''qualia'') of the Latin adjective '' quālis'' () ...
'' (see
Frank Cameron Jackson Frank Cameron Jackson (born 31 August 1943) is an Australian analytic philosopher and Emeritus Professor in the School of Philosophy (Research School of Social Sciences) at Australian National University (ANU) where he had spent most of the ...
and
Mary's room The knowledge argument (also known as Mary's room or Mary the super-scientist) is a philosophical thought experiment proposed by Frank Cameron Jackson, Frank Jackson in his article "Epiphenomenal Qualia" (1982) and extended in "What Mary Didn't Kno ...
).


Other contemporary understandings

An attribute of an object is called a property if it can be experienced (e.g. its color, size, weight, smell, taste, and location). Objects manifest themselves through their properties. These manifestations seem to change in a regular and unified way, suggesting that something underlies the properties. The change problem asks what that underlying thing is. According to
substance theory Substance theory, or substance–attribute theory, is an ontological theory positing that objects are constituted each by a ''substance'' and properties borne by the substance but distinct from it. In this role, a substance can be referred to as ...
, the answer is a substance, that which stands for the change. According to
substance theory Substance theory, or substance–attribute theory, is an ontological theory positing that objects are constituted each by a ''substance'' and properties borne by the substance but distinct from it. In this role, a substance can be referred to as ...
, because substances are only experienced through their properties a substance itself is never directly experienced. The problem of substance asks on what basis can one conclude the existence of a substance that cannot be seen or scientifically verified. According to
David Hume David Hume (; born David Home; 7 May 1711 NS (26 April 1711 OS) – 25 August 1776) Cranston, Maurice, and Thomas Edmund Jessop. 2020 999br>David Hume" ''Encyclopædia Britannica''. Retrieved 18 May 2020. was a Scottish Enlightenment phil ...
's bundle theory, the answer is none; thus an object is merely its properties.


Mahayana Buddhism

In the ''
Mūlamadhyamakakārikā The ''Mūlamadhyamakakārikā'' ( sa, मूलमध्यमककारिका, ''Root Verses on the Middle Way''), abbreviated as ''MMK'', is the foundational text of the Madhyamaka school of Mahāyāna Buddhist philosophy. It was composed ...
'', the Indian philosopher
Nagarjuna Nāgārjuna . 150 – c. 250 CE (disputed)was an Indian Mahāyāna Buddhist thinker, scholar-saint and philosopher. He is widely considered one of the most important Buddhist philosophers.Garfield, Jay L. (1995), ''The Fundamental Wisdom of ...
seizes upon the dichotomy between objects as collections of properties or as separate from those properties to demonstrate that both assertions fall apart under analysis. By uncovering this paradox he then provides a solution (''
pratītyasamutpāda ''Pratītyasamutpāda'' (Sanskrit: प्रतीत्यसमुत्पाद, Pāli: ''paṭiccasamuppāda''), commonly translated as dependent origination, or dependent arising, is a key doctrine in Buddhism shared by all schools of ...
'' – "dependent origination") that lies at the very root of
Buddhist Buddhism ( , ), also known as Buddha Dharma and Dharmavinaya (), is an Indian religion or philosophical tradition based on teachings attributed to the Buddha. It originated in northern India as a -movement in the 5th century BCE, and ...
praxis. Although Pratītyasamutpāda is normally limited to caused objects, Nagarjuna extends his argument to objects in general by differentiating two distinct ideas – dependent designation and dependent origination. He proposes that all objects are dependent upon designation, and therefore any discussion regarding the nature of objects can only be made in light of the context. The validity of objects can only be established within those conventions that assert them.


Physics

Limiting discussions of objecthood to the realm of physical objects may simplify them. However, defining physical objects in terms of
fundamental particle In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. Particles currently thought to be elementary include electrons, the fundamental fermions ( quarks, leptons, a ...
s (e.g.
quark A quark () is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. All common ...
s) leaves open the question of what is the nature of a fundamental particle and thus asks what
categories of being In ontology, the theory of categories concerns itself with the ''categories of being'': the highest ''genera'' or ''kinds of entities'' according to Amie Thomasson. To investigate the categories of being, or simply categories, is to determine the mo ...
can be used to explain physical objects.


Semantics

Symbol A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship. Symbols allow people to go beyond what is known or seen by creating linkages between otherwise very different conc ...
s represent objects; how they do so, the
map–territory relation The map–territory relation is the relationship between an object and a representation of that object, as in the relation between a geographical territory and a map of it. Polish-American scientist and philosopher Alfred Korzybski remarked th ...
, is the basic problem of
semantics Semantics (from grc, σημαντικός ''sēmantikós'', "significant") is the study of reference, meaning, or truth. The term can be used to refer to subfields of several distinct disciplines, including philosophy, linguistics and compu ...
.


See also

*
Abstract object theory Abstract object theory (AOT) is a branch of metaphysics regarding abstract objects. Originally devised by metaphysician Edward Zalta in 1981, the theory was an expansion of mathematical Platonism. Overview ''Abstract Objects: An Introduction ...
*
Abstraction Abstraction in its main sense is a conceptual process wherein general rules and concepts are derived from the usage and classification of specific examples, literal ("real" or " concrete") signifiers, first principles, or other methods. "An a ...
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Binding problem The consciousness and binding problem is the problem of how objects, background and abstract or emotional features are combined into a single experience. The binding problem refers to the overall encoding of our brain circuits for the combination o ...
* Category theory *
Cognitive linguistics Cognitive linguistics is an interdisciplinary branch of linguistics, combining knowledge and research from cognitive science, cognitive psychology, neuropsychology and linguistics. Models and theoretical accounts of cognitive linguistics are c ...
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Concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by s ...
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Continuous predicate {{technical, date=January 2020 ''Continuous predicate'' is a term coined by Charles Sanders Peirce (1839–1914) to describe a special type of relational predicate that results as the limit of a recursive process of hypostatic abstraction. Here is ...
* Donald Davidson's swamp man thought experiment (in "Knowing One Own's Mind", 1987 paper) *
Ethics Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ...
and meta-ethics * Hypostasis (philosophy and religion) * Hypostatic abstraction * List of ethics topics *
Michel Foucault Paul-Michel Foucault (, ; ; 15 October 192625 June 1984) was a French philosopher, historian of ideas, writer, political activist, and literary critic. Foucault's theories primarily address the relationship between power and knowledge, and ho ...
's critique of the subject and the oxymoron "historical subject" * Moral relativism * Neo-Kantianism * Nonexistent object * Noumenon and phenomenon * Object-oriented ontology * Observer (physics) * Open individualism * Paramatma * Personhood theory * Ship of Theseus * Sign relation * Soul (spirit), Soul * Subject (grammar) * Subjectivity and objectivity (philosophy) * Transcendental subject * Vertiginous question


References


Bibliography

* * Alain de Libera, "When Did the Modern Subject Emerge?", American Catholic Philosophical Quarterly, Vol. 82, No. 2, 2008, pp. 181–220. * Robert B. Pippin, ''The Persistence of Subjectivity. On the Kantian Aftermath'', Cambridge: Cambridge University Press, 2005. * Udo Thiel, ''The Early Modern Subject. Self-Consciousness and Personal Identity from Descartes to Hume'', New York: Oxford University Press, 2011.


External links

* * * * {{Authority control Concepts in metaphysics Consciousness Subjective experience Objects, Concepts in epistemology Ontology Physical objects