List of philosophical concepts
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A

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A priori and a posteriori ("from the earlier") and ("from the later") are Latin phrases used in philosophy to distinguish types of knowledge, justification, or argument by their reliance on empirical evidence or experience. knowledge is independent from current ...
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Absolute Absolute may refer to: Companies * Absolute Entertainment, a video game publisher * Absolute Radio, (formerly Virgin Radio), independent national radio station in the UK * Absolute Software Corporation, specializes in security and data risk manag ...
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Absolute time and space Absolute space and time is a concept in physics and philosophy about the properties of the universe. In physics, absolute space and time may be a preferred frame. Before Newton A version of the concept of absolute space (in the sense of a preferr ...
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Abstract and concrete In metaphysics, the distinction between abstract and concrete refers to a divide between two types of entities. Many philosophers hold that this difference has fundamental metaphysical significance. Examples of concrete objects include plants, hu ...
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Adiaphora Adiaphoron (; plural: adiaphora; from the Greek (pl. ), meaning "not different or differentiable") is the negation of ''diaphora'', "difference". In Cynicism, adiaphora represents indifference to the s of life. In Pyrrhonism, it indicates thin ...
* Aesthetic emotions *
Aesthetic interpretation In the philosophy of art, an interpretation is an explanation of the meaning of a work of art. An aesthetic interpretation expresses a particular emotional or experiential understanding most often used in reference to a poem or piece of liter ...
* Agathusia and aschimothusia *
Alief Alief is a working-class suburb in Southwest Harris County, Texas, United States. Most of Alief is within the city limits of Houston, while a portion of the community is in unincorporated Harris County. First settled in 1894 as a rural farm co ...
* All men are created equal * Analytic-synthetic distinction *
Anthropic principle The anthropic principle, also known as the "observation selection effect", is the hypothesis, first proposed in 1957 by Robert Dicke, that there is a restrictive lower bound on how statistically probable our observations of the universe are, bec ...
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Antinomy Antinomy (Greek ἀντί, ''antí'', "against, in opposition to", and νόμος, ''nómos'', "law") refers to a real or apparent mutual incompatibility of two laws. It is a term used in logic and epistemology, particularly in the philosophy of I ...
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Antinomian Antinomianism (Ancient Greek: ἀντί 'anti''"against" and νόμος 'nomos''"law") is any view which rejects laws or legalism and argues against moral, religious or social norms (Latin: mores), or is at least considered to do so. The term ha ...
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Apeiron ''Apeiron'' (; ) is a Greek word meaning "(that which is) unlimited," "boundless", "infinite", or "indefinite" from ''a-'', "without" and ''peirar'', "end, limit", "boundary", the Ionic Greek form of ''peras'', "end, limit, boundary". Origin ...
* Arborescent *
Artha ''Artha'' (; sa, अर्थ; Tamil: ''poruḷ'' / ''பொருள்'') is one of the four aims of human life in Indian philosophy.James Lochtefeld (2002), The Illustrated Encyclopedia of Hinduism, Rosen Publishing, New York, , pp 55–56 ...
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Art manifesto An art manifesto is a public declaration of the intentions, motives, or views of an artist or artistic movement. Manifestos are a standard feature of the various movements in the modernist avant-garde and are still written today. Art manifestos ...
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Atman Atman or Ātman may refer to: Film * ''Ātman'' (1975 film), a Japanese experimental short film directed by Toshio Matsumoto * ''Atman'' (1997 film), a documentary film directed by Pirjo Honkasalo People * Pavel Atman (born 1987), Russian hand ...
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Aufheben () or () is a German word with several seemingly contradictory meanings, including "to lift up", "to abolish", "cancel" or "suspend", or "to sublate". The term has also been defined as "abolish", "preserve", and "transcend". In philosophy, is ...
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Autonomy In developmental psychology and moral, political, and bioethical philosophy, autonomy, from , ''autonomos'', from αὐτο- ''auto-'' "self" and νόμος ''nomos'', "law", hence when combined understood to mean "one who gives oneself one' ...
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Avant-garde The avant-garde (; In 'advance guard' or ' vanguard', literally 'fore-guard') is a person or work that is experimental, radical, or unorthodox with respect to art, culture, or society.John Picchione, The New Avant-garde in Italy: Theoretica ...
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Avatar Avatar (, ; ), is a concept within Hinduism that in Sanskrit literally means "descent". It signifies the material appearance or incarnation of a powerful deity, goddess or spirit on Earth. The relative verb to "alight, to make one's appear ...
* Avadhuta


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Beauty Beauty is commonly described as a feature of objects that makes these objects pleasurable to perceive. Such objects include landscapes, sunsets, humans and works of art. Beauty, together with art and taste, is the main subject of aesthetics, o ...
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Being In metaphysics, ontology is the philosophical study of being, as well as related concepts such as existence, becoming, and reality. Ontology addresses questions like how entities are grouped into categories and which of these entities e ...
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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 tak ...
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Binary opposition A binary opposition (also binary system) is a pair of related terms or concepts that are opposite in meaning. Binary opposition is the system of language and/or thought by which two theoretical opposites are strictly defined and set off against one ...
* Biofact *
Body without organs The body without organs (or BwO; French: or ) is a philosophical concept used in the work of French philosophers Gilles Deleuze and Félix Guattari. The term was first used by French writer Antonin Artaud in his 1947 play ''To Have Done With th ...
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Boredom In conventional usage, boredom, ennui, or tedium is an emotional and occasionally psychological state experienced when an individual is left without anything in particular to do, is listlessness and dissatisfaction arising from a lack of occup ...
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Brahman In Hinduism, ''Brahman'' ( sa, ब्रह्मन्) connotes the highest universal principle, the ultimate reality in the universe.P. T. Raju (2006), ''Idealistic Thought of India'', Routledge, , page 426 and Conclusion chapter part X ...
* Brahmanda *
Brain in a vat In philosophy, the brain in a vat (BIV) is a scenario used in a variety of thought experiments intended to draw out certain features of human conceptions of knowledge, reality, truth, mind, consciousness, and meaning. It is a modern incar ...
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Brute fact In contemporary philosophy, a brute fact is a fact that cannot be explained in terms of a deeper, more "fundamental" fact. There are two main ways to explain something: say what "brought it about", or describe it at a more "fundamental" level. For ...


C

* Cambridge change *
Camp Camp may refer to: Outdoor accommodation and recreation * Campsite or campground, a recreational outdoor sleeping and eating site * a temporary settlement for nomads * Camp, a term used in New England, Northern Ontario and New Brunswick to descri ...
* Cartesian Other * Cartesian Self *
Categorical imperative The categorical imperative (german: kategorischer Imperativ) is the central philosophical concept in the deontological moral philosophy of Immanuel Kant. Introduced in Kant's 1785 '' Groundwork of the Metaphysic of Morals'', it is a way of eva ...
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Categorization Categorization is the ability and activity of recognizing shared features or similarities between the elements of the experience of the world (such as objects, events, or ideas), organizing and classifying experience by associating them to a ...
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Category 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 m ...
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Causal adequacy principle Causality (also referred to as causation, or cause and effect) is influence by which one event, process, state, or object (''a'' ''cause'') contributes to the production of another event, process, state, or object (an ''effect'') where the ca ...
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Causality Causality (also referred to as causation, or cause and effect) is influence by which one event, process, state, or object (''a'' ''cause'') contributes to the production of another event, process, state, or object (an ''effect'') where the cau ...
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Chakra Chakras (, ; sa , text=चक्र , translit=cakra , translit-std=IAST , lit=wheel, circle; pi, cakka) are various focal points used in a variety of ancient meditation practices, collectively denominated as Tantra, or the esoteric or ...
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Charvaka Charvaka ( sa, चार्वाक; IAST: ''Cārvāka''), also known as ''Lokāyata'', is an ancient school of Indian materialism. Charvaka holds direct perception, empiricism, and conditional inference as proper sources of knowledge, embra ...
* Chaitanya *
Choice A choice is the range of different things from which a being can choose. The arrival at a choice may incorporate motivators and models. For example, a traveler might choose a route for a journey based on the preference of arriving at a give ...
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Civic virtue Civic virtue is the harvesting of habits important for the success of a society. Closely linked to the concept of citizenship, civic virtue is often conceived as the dedication of citizens to the common welfare of each other even at the cost of ...
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Class consciousness In Marxism, class consciousness is the set of beliefs that a person holds regarding their social class or economic rank in society, the structure of their class, and their class interests. According to Karl Marx, it is an awareness that is key to ...
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Class Class or The Class may refer to: Common uses not otherwise categorized * Class (biology), a taxonomic rank * Class (knowledge representation), a collection of individuals or objects * Class (philosophy), an analytical concept used differently ...
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Cogito ergo sum The Latin , usually translated into English as "I think, therefore I am", is the "first principle" of René Descartes's philosophy. He originally published it in French as , in his 1637 ''Discourse on the Method'', so as to reach a wider audi ...
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Cognitive bias A cognitive bias is a systematic pattern of deviation from norm (philosophy), norm or rationality in judgment. Individuals create their own "subjective reality" from their perception of the input. An individual's construction of reality, not the ...
* Cognitive closure * Commensurability *
Common good In philosophy, economics, and political science, the common good (also commonwealth, general welfare, or public benefit) is either what is shared and beneficial for all or most members of a given community, or alternatively, what is achieved by c ...
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Common sense ''Common Sense'' is a 47-page pamphlet written by Thomas Paine in 1775–1776 advocating independence from Great Britain to people in the Thirteen Colonies. Writing in clear and persuasive prose, Paine collected various moral and political arg ...
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Composition of Causes The Composition of Causes was a set of philosophical laws advanced by John Stuart Mill in his watershed essay ''A System of Logic''. These laws outlined Mill's view of the epistemological components of emergentism, a school of philosophical laws ...
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Compossibility Compossibility is a philosophical concept from Gottfried Wilhelm Leibniz. According to Leibniz, a complete individual thing (for example a person) is characterized by all its properties, and these determine its relations with other individuals. Th ...
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Conatus In the philosophy of Baruch Spinoza, conatus (; :wikt:conatus; Latin for "effort; endeavor; impulse, inclination, tendency; undertaking; striving") is an innate inclination of a thing to continue to exist and enhance itself. This "thing" may b ...
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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 ...
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Condition of possibility In philosophy, condition of possibility (german: Bedingungen der Möglichkeit) is a concept made popular by the German philosopher Immanuel Kant, and is an important part of his philosophy. A condition of possibility is a necessary framework fo ...
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Conjecture In mathematics, a conjecture is a conclusion or a proposition that is proffered on a tentative basis without proof. Some conjectures, such as the Riemann hypothesis (still a conjecture) or Fermat's Last Theorem (a conjecture until proven in ...
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Conscience Conscience is a cognitive process that elicits emotion and rational associations based on an individual's moral philosophy or value system. Conscience stands in contrast to elicited emotion or thought due to associations based on immediate sens ...
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Consent Consent occurs when one person voluntarily agrees to the proposal or desires of another. It is a term of common speech, with specific definitions as used in such fields as the law, medicine, research, and sexual relationships. Consent as und ...
* Construct *
Creativity Creativity is a phenomenon whereby something new and valuable is formed. The created item may be intangible (such as an idea, a scientific theory, a musical composition, or a joke) or a physical object (such as an invention, a printed lit ...
* Crazy wisdom *
Cultural hegemony In Marxist philosophy, cultural hegemony is the dominance of a culturally diverse society by the ruling class who manipulate the culture of that society—the beliefs and explanations, perceptions, values, and mores—so that the worldview o ...
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Cultural sensibility ''Cultural sensibility'' refers to how sensibility ("openness to emotional impressions, susceptibility and sensitiveness") relates to an individual's moral, emotional or aesthetic standards or ideas. The term should not be confused with the more c ...
* Cuteness


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* Daimonic *
Darshana In Indian religions, ''Darshana'', also spelt ''Darshan'', (Sanskrit: दर्शन, , ) or ''Darshanam'' (darśanam) is the auspicious sight of a deity or a holy person. The term also refers to six traditional schools of Hindu philosophy ...
* De dicto and de re *
Definition A definition is a statement of the meaning of a term (a word, phrase, or other set of symbols). Definitions can be classified into two large categories: intensional definitions (which try to give the sense of a term), and extensional definiti ...
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Descriptive knowledge In epistemology, descriptive knowledge (also known as propositional knowledge, knowing-that, declarative knowledge, or constative knowledge) is knowledge that can be expressed in a declarative sentence or an indicative proposition. "Knowing-that" c ...
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Desiring-production Desiring-production (french: production désirante) is a term coined by the French thinkers Gilles Deleuze and Félix Guattari in their book ''Anti-Oedipus'' (1972). Overview Deleuze and Guattari oppose the Freudian conception of the unconscious ...
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Dharma Dharma (; sa, धर्म, dharma, ; pi, dhamma, italic=yes) is a key concept with multiple meanings in Indian religions, such as Hinduism, Buddhism, Jainism, Sikhism and others. Although there is no direct single-word translation for '' ...
* Dhyana *
Diksha Diksha ( Sanskrit: दीक्षा) also spelled diksa, deeksha or deeksa in common usage, translated as a "preparation or consecration for a religious ceremony", is giving of a mantra or an initiation by the guru (in Guru–shishya tradition) ...
* Disciplinary institution *
Discourse Discourse is a generalization of the notion of a conversation to any form of communication. Discourse is a major topic in social theory, with work spanning fields such as sociology, anthropology, continental philosophy, and discourse analysis. ...
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Disgust Disgust (Middle French: ''desgouster'', from Latin ''gustus'', "taste") is an emotional response of rejection or revulsion to something potentially contagious or something considered offensive, distasteful, or unpleasant. In ''The Expression o ...
* Dispositional and occurrent belief *
Distributive justice Distributive justice concerns the socially just allocation of resources. Often contrasted with just process, which is concerned with the administration of law, distributive justice concentrates on outcomes. This subject has been given considera ...
* Distrust *
Documentality Documentality is the theory of documents that underlies the ontology of social reality put forward by the Italian philosopher Maurizio Ferraris (see Ferraris 2007, 2008, 2009a and 2009b). The theory gives to documents a central position within the s ...
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Dogma Dogma is a belief or set of beliefs that is accepted by the members of a group without being questioned or doubted. It may be in the form of an official system of principles or doctrines of a religion, such as Roman Catholicism, Judaism, Islam ...
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Duty A duty (from "due" meaning "that which is owing"; fro, deu, did, past participle of ''devoir''; la, debere, debitum, whence "debt") is a commitment or expectation to perform some action in general or if certain circumstances arise. A duty may ...
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Dwelling In law, a dwelling (also known as a residence or an abode) is a self-contained unit of accommodation used by one or more households as a home - such as a house, apartment, mobile home, houseboat, vehicle, or other "substantial" structure. The ...


E

* Ecotechnics * Ecstasy *
Efficient cause The four causes or four explanations are, in Aristotelianism, Aristotelian thought, four fundamental types of answer to the question "why?", in Posterior Analytics, analysis of change or movement in nature: the Four_causes#Material, material, the ...
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Elegance Elegance is beauty that shows unusual effectiveness and simplicity. Elegance is frequently used as a standard of tastefulness, particularly in visual design, decorative arts, literature, science, and the aesthetics of mathematics. Elegant ...
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Embodied cognition Embodied cognition is the theory that many features of cognition, whether human or otherwise, are shaped by aspects of an organism's entire body. Sensory and motor systems are seen as fundamentally integrated with cognitive processing. The cognit ...
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Emergence In philosophy, systems theory, science, and art, emergence occurs when an entity is observed to have properties its parts do not have on their own, properties or behaviors that emerge only when the parts interact in a wider whole. Emergenc ...
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Empirical method Empirical research is research using empirical evidence. It is also a way of gaining knowledge by means of direct and indirect observation or experience. Empiricism values some research more than other kinds. Empirical evidence (the record of one ...
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Empirical relationship In science, an empirical relationship or phenomenological relationship is a relationship or correlation that is supported by experiment and observation but not necessarily supported by theory. Analytical solutions without a theory An empirical rel ...
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Empirical research Empirical research is research using empirical evidence. It is also a way of gaining knowledge by means of direct and indirect observation or experience. Empiricism values some research more than other kinds. Empirical evidence (the record of ...
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Entertainment Entertainment is a form of activity that holds the attention and interest of an audience or gives pleasure and delight. It can be an idea or a task, but is more likely to be one of the activities or events that have developed over thousa ...
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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 ...
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Epistemic injustice Epistemic injustice is injustice related to knowledge. It includes exclusion and silencing; systematic distortion or misrepresentation of one's meanings or contributions; undervaluing of one's status or standing in communicative practices; unfair d ...
* Epistemic virtue *
Epoché Epoché ( ἐποχή ''epokhē'', "cessation") is an ancient Greek term. In Hellenistic philosophy it is a technical term typically translated as "suspension of judgment" but also as "withholding of assent". In the modern philosophy of Phenomeno ...
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Eroticism Eroticism () is a quality that causes sexual feelings, as well as a philosophical contemplation concerning the aesthetics of sexual desire, sensuality, and romantic love. That quality may be found in any form of artwork, including painting, ...
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Essence Essence ( la, essentia) is a polysemic term, used in philosophy and theology as a designation for the property or set of properties that make an entity or substance what it fundamentally is, and which it has by necessity, and without which it ...
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Eternity Eternity, in common parlance, means infinite time that never ends or the quality, condition, or fact of being everlasting or eternal. Classical philosophy, however, defines eternity as what is timeless or exists outside time, whereas sempit ...
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Ethics of care The ethics of care (alternatively care ethics or EoC) is a normative ethical theory that holds that moral action centers on interpersonal relationships and care or benevolence as a virtue. EoC is one of a cluster of normative ethical theories t ...
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Eudaimonia Eudaimonia ( Greek: εὐδαιμονία ; sometimes anglicized as eudaemonia or eudemonia, ) is a Greek word literally translating to the state or condition of 'good spirit', and which is commonly translated as 'happiness' or 'welfare'. In w ...
* Eupraxis *
Existence Existence is the ability of an entity to interact with reality. In philosophy, it refers to the ontological property of being. Etymology The term ''existence'' comes from Old French ''existence'', from Medieval Latin ''existentia/exsistentia' ...
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Existential phenomenology Existential phenomenology encompasses a wide range of thinkers who take up the view that philosophy must begin from experience like phenomenology, but argues for the temporality of personal existence as the framework for analysis of the human cond ...
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Experience Experience refers to conscious events in general, more specifically to perceptions, or to the practical knowledge and familiarity that is produced by these conscious processes. Understood as a conscious event in the widest sense, experience involv ...


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Fact A fact is a datum about one or more aspects of a circumstance, which, if accepted as true and proven true, allows a logical conclusion to be reached on a true–false evaluation. Standard reference works are often used to check facts. Scie ...
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Fidelity Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of ''fealty''. Both derive from the Latin word ''fidēlis'', meaning "faithful or loyal". In the City of London fin ...
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Final anthropic principle Frank Jennings Tipler (born February 1, 1947) is an American mathematical physicist and cosmologist, holding a joint appointment in the Departments of Mathematics and Physics at Tulane University. Tipler has written books and papers on the Omega ...
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Final cause The four causes or four explanations are, in Aristotelian thought, four fundamental types of answer to the question "why?", in analysis of change or movement in nature: the material, the formal, the efficient, and the final. Aristotle wrote th ...
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Formal cause The four causes or four explanations are, in Aristotelian thought, four fundamental types of answer to the question "why?", in analysis of change or movement in nature: the material, the formal, the efficient, and the final. Aristotle wrote t ...
* Formal theorem *
Four causes The four causes or four explanations are, in Aristotelian thought, four fundamental types of answer to the question "why?", in analysis of change or movement in nature: the material, the formal, the efficient, and the final. Aristotle wrote th ...
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Free will Free will is the capacity of agents to choose between different possible courses of action unimpeded. Free will is closely linked to the concepts of moral responsibility, praise, culpability, sin, and other judgements which apply only to ac ...
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Friendship Friendship is a relationship of mutual affection between people. It is a stronger form of interpersonal bond than an "acquaintance" or an "association", such as a classmate, neighbor, coworker, or colleague. In some cultures, the concept of ...


G

* Gemeinschaft and Gesellschaft * Gettier problem * Cooperative principle (Gricean maxims)


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Haecceity Haecceity (; from the Latin ''haecceitas'', which translates as "thisness") is a term from medieval scholastic philosophy, first coined by followers of Duns Scotus to denote a concept that he seems to have originated: the irreducible determination ...
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Half-truth A half-truth is a deceptive statement that includes some element of truth. The statement might be partly true, the statement may be totally true, but only part of the whole truth, or it may use some deceptive element, such as improper punctuation, ...
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Happiness Happiness, in the context of mental or emotional states, is positive or pleasant emotions ranging from contentment to intense joy. Other forms include life satisfaction, well-being, subjective well-being, flourishing and eudaimonia. ...
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Harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howeve ...
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Hate speech Hate speech is defined by the ''Cambridge Dictionary'' as "public speech that expresses hate or encourages violence towards a person or group based on something such as race, religion, sex, or sexual orientation". Hate speech is "usually thoug ...
* Here is a hand * Heteronomy * History and Class Consciousness *
Human rights Human rights are moral principles or normsJames Nickel, with assistance from Thomas Pogge, M.B.E. Smith, and Leif Wenar, 13 December 2013, Stanford Encyclopedia of PhilosophyHuman Rights Retrieved 14 August 2014 for certain standards of hu ...


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Idea In common usage and in philosophy, ideas are the results of thought. Also in philosophy, ideas can also be mental representational images of some object. Many philosophers have considered ideas to be a fundamental ontological category of bei ...
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Ideal (ethics) An ideal is a principle or value that one actively pursues as a goal, usually in the context of ethics, and one's prioritization of ideals can serve to indicate the extent of one's dedication to each. The belief in ideals is called ethical ideali ...
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Ideal speech situation An ideal speech situation was a term introduced in the early philosophy of Jürgen Habermas. It argues that an ideal speech situation is found when communication between individuals is governed by basic, implied rules. In an ideal speech situation, ...
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Identity Identity may refer to: * Identity document * Identity (philosophy) * Identity (social science) * Identity (mathematics) Arts and entertainment Film and television * ''Identity'' (1987 film), an Iranian film * ''Identity'' (2003 film), an ...
* Ideological repression *
Ideology 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 ...
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Ignoramus et ignorabimus The Latin maxim , meaning "we do not know and will not know", represents the idea that scientific knowledge is limited. It was popularized by Emil du Bois-Reymond, a German physiologist, in his 1872 address ("The Limits of Science"). Seven ...
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Ignorance Ignorance is a lack of knowledge and understanding. The word "ignorant" is an adjective that describes a person in the state of being unaware, or even cognitive dissonance and other cognitive relation, and can describe individuals who are unaware ...
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I know that I know nothing "I know that I know nothing" is a saying derived from Plato's account of the Greek philosopher Socrates: ''"For I was conscious that I knew practically nothing..."'' (Plato, Apology 22d, translated by Harold North Fowler, 1966). Socrates himself ...
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Immanence The doctrine or theory of immanence holds that the divine encompasses or is manifested in the material world. It is held by some philosophical and metaphysical theories of divine presence. Immanence is usually applied in monotheistic, pant ...
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Immanent critique Immanent critique is a method of analyzing culture that identifies contradictions in society's rules and systems. Most importantly, it juxtaposes the ideals articulated by society against the inadequate realization of those ideals in society's insti ...
* Implicate and explicate order according to David Bohm *
Infallibility Infallibility refers to an inability to be wrong. It can be applied within a specific domain, or it can be used as a more general adjective. The term has significance in both epistemology and theology, and its meaning and significance in both ...
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Inference Inferences are steps in reasoning, moving from premises to logical consequences; etymologically, the word ''wikt:infer, infer'' means to "carry forward". Inference is theoretically traditionally divided into deductive reasoning, deduction and in ...
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Infinity Infinity is that which is boundless, endless, or larger than any natural number. It is often denoted by the infinity symbol . Since the time of the ancient Greeks, the philosophical nature of infinity was the subject of many discussions am ...
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Information Information is an abstract concept that refers to that which has the power to inform. At the most fundamental level information pertains to the interpretation of that which may be sensed. Any natural process that is not completely random, ...
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Injustice Injustice is a quality relating to unfairness or undeserved outcomes. The term may be applied in reference to a particular event or situation, or to a larger status quo. In Western philosophy and jurisprudence, injustice is very commonly—but n ...
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Innocence Innocence is a lack of guilt, with respect to any kind of crime, or wrongdoing. In a legal context, innocence is to the lack of legal guilt of an individual, with respect to a crime. In other contexts, it is a lack of experience. In relatio ...
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Instantiation principle The instantiation principle or principle of instantiation or principle of exemplification is the concept in metaphysics and logic (first put forward by David Malet Armstrong) that there can be no uninstantiated or unexemplified properties (or univer ...
* Institutional cruelty * Intellectual responsibility *
Intention Intentions are mental states in which the agent commits themselves to a course of action. Having the plan to visit the zoo tomorrow is an example of an intention. The action plan is the ''content'' of the intention while the commitment is the ''a ...
* Integral philosophy * Integral theory *
Integral yoga Integral yoga, sometimes also called supramental yoga, is the yoga-based philosophy and practice of Sri Aurobindo and ''The Mother'' (Mirra Alfassa). Central to ''Integral yoga'' is the idea that Spirit manifests itself in a process of involu ...
* Interpellation * Intrinsic and extrinsic properties *
Intuition Intuition is the ability to acquire knowledge without recourse to conscious reasoning. Different fields use the word "intuition" in very different ways, including but not limited to: direct access to unconscious knowledge; unconscious cognition; ...
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Involution Involution may refer to: * Involute, a construction in the differential geometry of curves * '' Agricultural Involution: The Processes of Ecological Change in Indonesia'', a 1963 study of intensification of production through increased labour inpu ...
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Ius indigenatus ''Ius indigenatus'' (Latin for "right of local birth") is a right which was from the 15th to the 18th century a requirement for people to hold royal office in Royal Prussia, a Polish province. It limited offices and land ownership to local Prussia ...


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Judgement Judgement (or US spelling judgment) is also known as ''adjudication'', which means the evaluation of evidence to make a decision. Judgement is also the ability to make considered decisions. The term has at least five distinct uses. Aristotle s ...
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Jus sanguinis ( , , ; 'right of blood') is a principle of nationality law by which citizenship is determined or acquired by the nationality or ethnicity of one or both parents. Children at birth may be citizens of a particular state if either or both of th ...
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Jus soli ''Jus soli'' ( , , ; meaning "right of soil"), commonly referred to as birthright citizenship, is the right of anyone born in the territory of a state to nationality or citizenship. ''Jus soli'' was part of the English common law, in cont ...
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Just War The just war theory ( la, bellum iustum) is a doctrine, also referred to as a tradition, of military ethics which is studied by military leaders, theologians, ethicists and policy makers. The purpose of the doctrine is to ensure that a war i ...
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Justice Justice, in its broadest sense, is the principle that people receive that which they deserve, with the interpretation of what then constitutes "deserving" being impacted upon by numerous fields, with many differing viewpoints and perspective ...


K

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Kathekon Kathēkon ( el, καθῆκον) (plural: ''kathēkonta'' el, καθήκοντα) is a Greek concept, forged by the founder of Stoicism, Zeno of Citium. It may be translated as "appropriate behaviour", "befitting actions", or "convenient action fo ...
* KK thesis *
Knowledge Knowledge can be defined as awareness of facts or as practical skills, and may also refer to familiarity with objects or situations. Knowledge of facts, also called propositional knowledge, is often defined as true belief that is distin ...
*
Kundalini energy In Hinduism, Kundalini ( sa, कुण्डलिनी, translit=kuṇḍalinī, translit-std=IAST, lit=coiled snake, ) is a form of divine feminine energy (or ''Shakti'') believed to be located at the base of the spine, in the ''muladhara'' ...
*
Kaula Kaula may refer to: People * Prithvi Nath Kaula (1924–2009), Indian librarian * William J. Kaula (1871–1953), American watercolor painter * William M. Kaula (1926–2000), Australian-born American geophysicist Other uses * USS ''Kaula'' (AG- ...
*
Kalachakra ''Kālacakra'' () is a polysemic term in Vajrayana Buddhism that means " wheel of time" or "time cycles". "''Kālacakra''" is also the name of a series of Buddhist texts and a major practice lineage in Indian Buddhism and Tibetan Buddhism. The ...
* Kala *
Karma Karma (; sa, कर्म}, ; pi, kamma, italic=yes) in Sanskrit means an action, work, or deed, and its effect or consequences. In Indian religions, the term more specifically refers to a principle of cause and effect, often descriptively ...
*
Karma yoga Karma yoga ( sa, कर्म योग), also called Karma marga, is one of the four classical spiritual paths in Hinduism, one based on the " yoga of action", the others being Jnana yoga (path of knowledge), Rāja yoga (path of meditat ...


L

*
Laïcité (; 'secularism') is the constitutional principle of secularism in France. Article 1 of the French Constitution is commonly interpreted as discouraging religious involvement in government affairs, especially religious influence in the determin ...
* Last man * League of peace *
Logic Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or of logical truths. It is a formal science investigating how conclusions follow from prem ...
*
Life imitating art Anti-mimesis is a philosophical position that holds the direct opposite of Aristotelian mimesis. Its most notable proponent is Oscar Wilde, who opined in his 1889 essay '' The Decay of Lying'' that, "Life imitates Art far more than Art imitates Li ...
*
Logical consequence Logical consequence (also entailment) is a fundamental concept in logic, which describes the relationship between statements that hold true when one statement logically ''follows from'' one or more statements. A valid logical argument is on ...
*
Logical constant In logic, a logical constant of a language \mathcal is a symbol that has the same semantic value under every interpretation of \mathcal. Two important types of logical constants are logical connectives and quantifiers. The equality predicate (us ...
*
Logical form In logic, logical form of a statement is a precisely-specified semantic version of that statement in a formal system. Informally, the logical form attempts to formalize a possibly ambiguous statement into a statement with a precise, unambiguou ...
*
Logical truth Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth or falsity of its constituent propositions. In other words, a logical truth is a statement whic ...
*
Logos ''Logos'' (, ; grc, λόγος, lógos, lit=word, discourse, or reason) is a term used in Western philosophy, psychology and rhetoric and refers to the appeal to reason that relies on logic or reason, inductive and deductive reasoning. Aris ...
*
Love Love encompasses a range of strong and positive emotional and mental states, from the most sublime virtue or good habit, the deepest Interpersonal relationship, interpersonal affection, to the simplest pleasure. An example of this range of ...
*
Loyalty Loyalty, in general use, is a devotion and faithfulness to a nation, cause, philosophy, country, group, or person. Philosophers disagree on what can be an object of loyalty, as some argue that loyalty is strictly interpersonal and only another ...


M

* Magnificence *
Mansion of Many Apartments The Mansion of Many Apartments is a metaphor that the poet John Keats expressed in a letter to John Hamilton Reynolds dated Sunday, 3 May 1818. : I compare human life to a large Mansion of Many Apartments, two of which I can only describe, the door ...
*
Mantra A mantra ( Pali: ''manta'') or mantram (मन्त्रम्) is a sacred utterance, a numinous sound, a syllable, word or phonemes, or group of words in Sanskrit, Pali and other languages believed by practitioners to have religious, ...
*
Marx's theory of alienation Karl Marx's theory of alienation describes the estrangement (German: ''Entfremdung'') of people from aspects of their human nature (''Gattungswesen'', 'species-essence') as a consequence of the division of labor and living in a society of strati ...
*
Marx's theory of human nature Some Marxists posit what they deem to be Karl Marx's theory of human nature, which they accord an important place in his critique of capitalism, his conception of communism, and his ' materialist conception of history'. Marx, however, does not ...
* Master-slave dialectic *
Material cause The four causes or four explanations are, in Aristotelian thought, four fundamental types of answer to the question "why?", in analysis of change or movement in nature: the material, the formal, the efficient, and the final. Aristotle wrote t ...
*
Matter In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic part ...
* Max Scheler's Concept of Ressentiment *
Maya Maya may refer to: Civilizations * Maya peoples, of southern Mexico and northern Central America ** Maya civilization, the historical civilization of the Maya peoples ** Maya language, the languages of the Maya peoples * Maya (Ethiopia), a popul ...
* Meaning *
Meaning of life The meaning of life, or the answer to the question: "What is the meaning of life?", pertains to the significance of living or existence in general. Many other related questions include: "Why are we here?", "What is life all about?", or "Wha ...
*
Mental representation A mental representation (or cognitive representation), in philosophy of mind, cognitive psychology, neuroscience, and cognitive science, is a hypothetical internal cognitive symbol that represents external reality, or else a mental process that ...
*
Mercy Mercy (Middle English, from Anglo-French ''merci'', from Medieval Latin ''merced-'', ''merces'', from Latin, "price paid, wages", from ''merc-'', ''merxi'' "merchandise") is benevolence, forgiveness, and kindness in a variety of ethical, relig ...
*
Mimesis Mimesis (; grc, μίμησις, ''mīmēsis'') is a term used in literary criticism and philosophy that carries a wide range of meanings, including '' imitatio'', imitation, nonsensuous similarity, receptivity, representation, mimicry, the a ...
*
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 various m ...
* Minority *
Moksha ''Moksha'' (; sa, मोक्ष, '), also called ''vimoksha'', ''vimukti'' and ''mukti'', is a term in Hinduism, Buddhism, Jainism and Sikhism for various forms of emancipation, enlightenment, liberation, and release. In its soteriologic ...
* Molyneux's Problem *
Moral responsibility In philosophy, moral responsibility is the status of morally deserving praise, blame, reward, or punishment for an act or omission in accordance with one's moral obligations. Deciding what (if anything) counts as "morally obligatory" is a pr ...
*
Motion In physics, motion is the phenomenon in which an object changes its position with respect to time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed and frame of reference to an observer and m ...
* Mundane reason


N

*
Name A name is a term used for identification by an external observer. They can identify a class or category of things, or a single thing, either uniquely, or within a given context. The entity identified by a name is called its referent. A persona ...
*
Nation A nation is a community of people formed on the basis of a combination of shared features such as language, history, ethnicity, culture and/or society. A nation is thus the collective identity of a group of people understood as defined by th ...
*
Natural and legal rights Some philosophers distinguish two types of rights, natural rights and legal rights. * Natural rights are those that are not dependent on the laws or customs of any particular culture or government, and so are ''universal'', '' fundamental'' an ...
*
Nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are ...
* Necessary and sufficient condition * Negative capability * Nonmaleficence * Norm of reciprocity * Norm *
Normative science In the applied sciences, normative science is a type of information that is developed, presented, or interpreted based on an assumed, usually unstated, preference for a particular outcome, policy or class of policies or outcomes. Regular or tradit ...
* Notion


O

*
Object Object may refer to: General meanings * Object (philosophy), a thing, being, or concept ** Object (abstract), an object which does not exist at any particular time or place ** Physical object, an identifiable collection of matter * Goal, an ...
*
Objectivity Objectivity can refer to: * Objectivity (philosophy), the property of being independent from perception ** Objectivity (science), the goal of eliminating personal biases in the practice of science ** Journalistic objectivity, encompassing fai ...
* Om *
Omphalos hypothesis The Omphalos hypothesis is one attempt to reconcile the scientific evidence that the Earth is billions of years old with a literal interpretation of the Genesis creation narrative, which implies that the Earth is only a few thousand years old. I ...
*
Ontology In metaphysics, ontology is the philosophy, philosophical study of being, as well as related concepts such as existence, Becoming (philosophy), becoming, and reality. Ontology addresses questions like how entities are grouped into Category ...


P

*
Panopticon The panopticon is a type of institutional building and a system of control designed by the English philosopher and social theorist Jeremy Bentham in the 18th century. The concept of the design is to allow all prisoners of an institution to be o ...
*
Paradox A paradox is a logically self-contradictory statement or a statement that runs contrary to one's expectation. It is a statement that, despite apparently valid reasoning from true premises, leads to a seemingly self-contradictory or a logically u ...
*
Passions ''Passions'' is an American television soap opera that originally aired on NBC from July 5, 1999, to September 7, 2007, and on DirecTV's The 101 Network from September 17, 2007, to August 7, 2008. Created by screenwriter James E. Reilly and ...
*
Pattern A pattern is a regularity in the world, in human-made design, or in abstract ideas. As such, the elements of a pattern repeat in a predictable manner. A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated li ...
*
Peace Peace is a concept of societal friendship and harmony in the absence of hostility and violence. In a social sense, peace is commonly used to mean a lack of conflict (such as war) and freedom from fear of violence between individuals or groups. ...
* Percept *
Perception Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous syste ...
* Peripatetic axiom * Perpetual peace * Philosophical analysis * Philosophy of futility *
Physical body In common usage and classical mechanics, a physical object or physical body (or simply an object or body) is a collection of matter within a defined contiguous boundary in three-dimensional space. The boundary must be defined and identified by t ...
*
Physis Fusis, Phusis or Physis (; grc, φύσις ) is a Greek philosophical, theological, and scientific term, usually translated into English—according to its Latin translation "natura"—as "nature". The term originated in ancient Greek philosophy ...
*
Pneuma ''Pneuma'' () is an ancient Greek word for "breath", and in a religious context for " spirit" or "soul". It has various technical meanings for medical writers and philosophers of classical antiquity, particularly in regard to physiology, and is ...
*
Political consciousness Following the work of Georg Wilhelm Friedrich Hegel, Karl Marx outlined the workings of a political consciousness. The politics of consciousness Consciousness typically refers to the idea of a being who is self-aware. It is a distinction often re ...
* Polychotomous key * Possible world * Posthegemony * Prakriti *
Purusha ''Purusha'' (' or ) is a complex concept whose meaning evolved in Vedic and Upanishadic times. Depending on source and historical timeline, it means the cosmic being or self, awareness, and universal principle.Karl Potter, Presuppositions of Ind ...
*
Pratyabhijna Pratyabhijñā or Pratyabhigyā ( sa, प्रत्यभिज्ञा, pratyabhijñā, re-cognition) is an idealistic, monistic, and theistic school of philosophy in Kashmir Shaivism which originated in the ninth century CE. The term ''Tri ...
*
Presupposition In the branch of linguistics known as pragmatics, a presupposition (or PSP) is an implicit assumption about the world or background belief relating to an utterance whose truth is taken for granted in discourse. Examples of presuppositions include ...
*
Primum non nocere ' () is a Latin phrase that means "first, do no harm". The phrase is sometimes recorded as '. Non-maleficence, which is derived from the maxim, is one of the principal precepts of bioethics that all students in healthcare are taught in school a ...
*
Principle A principle is a proposition or value that is a guide for behavior or evaluation. In law, it is a rule that has to be or usually is to be followed. It can be desirably followed, or it can be an inevitable consequence of something, such as the l ...
*
Principle of double effect The principle of double effect – also known as the rule of double effect; the doctrine of double effect, often abbreviated as DDE or PDE, double-effect reasoning; or simply double effect – is a set of ethical criteria which Christian philosop ...
*
Problem of induction First formulated by David Hume, the problem of induction questions our reasons for believing that the future will resemble the past, or more broadly it questions predictions about unobserved things based on previous observations. This inferen ...
*
Problem of other minds The problem of other minds is a philosophical problem traditionally stated as the following epistemological question: Given that I can only observe the behavior of others, how can I know that others have minds? The problem is that knowledge of ot ...
*
Prohairesis Prohairesis ( grc, προαίρεσις; variously translated as "moral character", "will", "volition", "choice", "intention", or "moral choice") is a fundamental concept in the Stoic philosophy of Epictetus. It represents the choice involved in g ...
*
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 ...
*
Propositional attitude A propositional attitude is a mental state held by an agent toward a proposition. Linguistically, propositional attitudes are denoted by a verb (e.g. "believed") governing an embedded "that" clause, for example, 'Sally believed that she had won ...


Q

*
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'' () ...
*
Quality Quality may refer to: Concepts *Quality (business), the ''non-inferiority'' or ''superiority'' of something *Quality (philosophy), an attribute or a property *Quality (physics), in response theory * Energy quality, used in various science discipl ...
*
Quantity Quantity or amount is a property that can exist as a multitude or magnitude, which illustrate discontinuity and continuity. Quantities can be compared in terms of "more", "less", or "equal", or by assigning a numerical value multiple of a u ...
* Quidditas


R

* Rasa *
Rationality Rationality is the quality of being guided by or based on reasons. In this regard, a person acts rationally if they have a good reason for what they do or a belief is rational if it is based on strong evidence. This quality can apply to an ab ...
* Real freedom *
Reason Reason is the capacity of consciously applying logic by drawing conclusions from new or existing information, with the aim of seeking the truth. It is closely associated with such characteristically human activities as philosophy, science, lang ...
* Reciprocity *
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'' ...
*
Reform Reform ( lat, reformo) means the improvement or amendment of what is wrong, corrupt, unsatisfactory, etc. The use of the word in this way emerges in the late 18th century and is believed to originate from Christopher Wyvill's Association movement ...
*
Regress argument In epistemology, the regress argument is the argument that any proposition requires a justification. However, any justification itself requires support. This means that any proposition whatsoever can be endlessly (infinitely) questioned, resul ...
*
Rajas Rajas (Sanskrit: रजस्) is one of the three Guṇas (tendencies, qualities, attributes), a philosophical and psychological concept developed by the Samkhya school of Hindu philosophy.James G. Lochtefeld, Rajas, in The Illustrated Encycloped ...
*
Raja yoga ''Raja'' (; from , IAST ') is a royal title used for South Asian monarchs. The title is equivalent to king or princely ruler in South Asia and Southeast Asia. The title has a long history in South Asia and Southeast Asia, being attested f ...
* Ren * Right to exist *
Righteousness Righteousness is the quality or state of being morally correct and justifiable. It can be considered synonymous with "rightness" or being "upright". It can be found in Indian religions and Abrahamic traditions, among other religions, as a theologi ...
*
Rights Rights are legal, social, or ethical principles of freedom or entitlement; that is, rights are the fundamental normative rules about what is allowed of people or owed to people according to some legal system, social convention, or ethical theory ...
* Ring of Gyges * Rule of Rescue


S

* Satchidananda *
Sattva Sattva ( Sanskrit: सत्त्व, meaning ''honesty'') is one of the three guṇas or "modes of existence" (tendencies, qualities, attributes), a philosophical and psychological concept understood by the Samkhya school of Hindu philosophy.Jame ...
* Sahaja *
Samarasa Samarasa (Sanskrit Devanagari: समरास; IAST: samarāsa; synonymous with IAST: ekarāsa; ; ) is literally "one-taste" "one-flavour" or "same-taste" and means equipoise in feelings, non-discriminating or the mind at rest. Dzogchen Vajranath ...
*
Satori is a Japanese Buddhist term for awakening, "comprehension; understanding". It is derived from the Japanese verb satoru. In the Zen Buddhist tradition, ''satori'' refers to a deep experience of '' kenshō'', "seeing into one's true nature ...
* Sea of Beauty *
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 ''selfhoo ...
*
Self-realization Self-realization is an expression used in Western psychology, philosophy, and spirituality; and in Indian religions. In the Western understanding, it is the "fulfillment by oneself of the possibilities of one's character or personality" (s ...
*
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 comput ...
* Sense data *
Set Set, The Set, SET or SETS may refer to: Science, technology, and mathematics Mathematics *Set (mathematics), a collection of elements *Category of sets, the category whose objects and morphisms are sets and total functions, respectively Electro ...
*
Shabda ''Shabda'' ( sa, शब्द, ), is the Sanskrit word for "speech sound". In Sanskrit grammar, the term refers to an utterance in the sense of linguistic performance. History In classical Indian philosophy of language, the grammarian Katyaya ...
*
Shakti In Hinduism, especially Shaktism (a theological tradition of Hinduism), Shakti (Devanagari: शक्ति, IAST: Śakti; lit. "Energy, ability, strength, effort, power, capability") is the primordial cosmic energy, female in aspect, and r ...
* Sunyata *
Slippery slope A slippery slope argument (SSA), in logic, critical thinking, political rhetoric, and caselaw, is an argument in which a party asserts that a relatively small first step leads to a chain of related events culminating in some significant (usually ...
*
Simulacrum A simulacrum ( plural: simulacra or simulacrums, from Latin '' simulacrum'', which means "likeness, semblance") is a representation or imitation of a person or thing. The word was first recorded in the English language in the late 16th century, ...
*
Simulated reality The simulation theory is the hypothesis that reality could be simulated—for example by quantum computer simulation—to a degree indistinguishable from "true" reality. It could contain conscious minds that may or may not know that they live i ...
*
Simulation hypothesis The simulation hypothesis proposes that all of our existence is a simulated reality, such as a computer simulation. The simulation hypothesis bears a close resemblance to various other skeptical scenarios from throughout the history of philosophy. ...
*
Sittlichkeit ''Sittlichkeit'' is the concept of "ethical life" or "ethical order" furthered by philosopher Georg Wilhelm Friedrich Hegel in his 1807 work ''Phenomenology of Spirit'' and his 1820/21 work ''Elements of the Philosophy of Right'' (''PR''). The thr ...
*
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 ...
*
Society A society is a group of individuals involved in persistent social interaction, or a large social group sharing the same spatial or social territory, typically subject to the same political authority and dominant cultural expectations. Soc ...
* Soku hi * Sortal *
Speculative reason Speculative reason, sometimes called theoretical reason or pure reason, is theoretical (or logical, deductive) thought, as opposed to practical (active, willing) thought. The distinction between the two goes at least as far back as the ancient G ...
*
State of nature The state of nature, in moral and political philosophy, religion, social contract theories and international law, is the hypothetical life of people before societies came into existence. Philosophers of the state of nature theory deduce that the ...
*
Style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ...
* Sub specie aeternitatis * Subject * Sublime *
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 ...
*
Substantial form Substantial form was an Aristotelian innovation designed to solve three problems. The first is how physical things can exist as certain types of intelligible things, e.g., Rover and Fido are both dogs because they have the same type of immaterial ...
*
Substitution Substitution may refer to: Arts and media *Chord substitution, in music, swapping one chord for a related one within a chord progression *Substitution (poetry), a variation in poetic scansion * "Substitution" (song), a 2009 song by Silversun Pic ...
*
Suffering Suffering, or pain in a broad sense, may be an experience of unpleasantness or aversion, possibly associated with the perception of harm or threat of harm in an individual. Suffering is the basic element that makes up the negative valence of a ...
* Supermind * Superrationality *
Supertask In philosophy, a supertask is a countably infinite sequence of operations that occur sequentially within a finite interval of time. Supertasks are called hypertasks when the number of operations becomes uncountably infinite. A hypertask that in ...
*
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 ...
*
Syntax In linguistics, syntax () is the study of how words and morphemes combine to form larger units such as phrases and sentences. Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure ( constituenc ...


T

*
Taste The gustatory system or sense of taste is the sensory system that is partially responsible for the perception of taste (flavor). Taste is the perception produced or stimulated when a substance in the mouth reacts chemically with taste receptor ...
*
Tantra Tantra (; sa, तन्त्र, lit=loom, weave, warp) are the esoteric traditions of Hinduism and Buddhism that developed on the Indian subcontinent from the middle of the 1st millennium CE onwards. The term ''tantra'', in the India ...
*
Telos Telos (; ) is a term used by philosopher Aristotle to refer to the final cause of a natural organ or entity, or of a work of human art. Intentional actualization of potential or inherent purpose,"Telos.''Philosophy Terms'' Retrieved 3 May 2020. ...
* The Golden Rule * The saying and the said *
Theorem In mathematics, a theorem is a statement that has been proved, or can be proved. The ''proof'' of a theorem is a logical argument that uses the inference rules of a deductive system to establish that the theorem is a logical consequence of t ...
*
Theory of justification Justification (also called epistemic justification) is the property of belief that qualifies it as knowledge rather than mere opinion. Epistemology is the study of reasons that someone holds a rationally admissible belief (although the term is a ...
*
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 ...
* Thrownness * Thumos * Tamas * Ti *
Time Time is the continued sequence of existence and event (philosophy), events that occurs in an apparently irreversible process, irreversible succession from the past, through the present, into the future. It is a component quantity of various me ...
*
Trailokya Trailokya ( sa, त्रैलोक्य; Kannada: ತ್ರೈಲೋಕ್ಯ; pi, tiloka, Tibetan: khams gsum; Chinese: 三界) literally means "three worlds"Fischer-Schreiber ''et al.'' (1991), p. 230, entry for "Triloka." Here, synonyms ...
(Triloka) * Transcendent * Transcendental apperception * Transworld identity * Trika *
Triratna The Triratna ( pi, or ; sa, or ) is a Buddhist symbol, thought to visually represent the Three Jewels of Buddhism (the Buddha, the Dhamma, the Sangha). Symbol The Triratna symbol is composed of: * A lotus flower within a circle. * A di ...
*
Trilok (Jainism) The early Jain contemplated the nature of the earth and universe and developed a detailed hypothesis on the various aspects of astronomy and cosmology. According to the Jain texts, the universe is divided into 3 parts: * ''Urdhva Loka'' – the ...
* Trust *
Truth Truth is the property of being in accord with fact or reality.Merriam-Webster's Online Dictionarytruth 2005 In everyday language, truth is typically ascribed to things that aim to represent reality or otherwise correspond to it, such as belief ...
*
Truth value In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical logic has only two possible values ('' true'' or '' false''). Computing In some pro ...
* Type


U

* Übermensch *
Unity of science The unity of science is a thesis in philosophy of science that says that all the sciences form a unified whole. Overview The unity of science thesis was proposed by Ludwig von Bertalanffy in "General System Theory: A New Approach to Unity of Scie ...
* Unity of the proposition *
Universal Universal is the adjective for universe. Universal may also refer to: Companies * NBCUniversal, a media and entertainment company ** Universal Animation Studios, an American Animation studio, and a subsidiary of NBCUniversal ** Universal TV, a t ...
* Universality * Unobservable *
Utility As a topic of economics, utility is used to model worth or value. Its usage has evolved significantly over time. The term was introduced initially as a measure of pleasure or happiness as part of the theory of utilitarianism by moral philosophe ...


V

* Validity *
Value Value or values may refer to: Ethics and social * Value (ethics) wherein said concept may be construed as treating actions themselves as abstract objects, associating value to them ** Values (Western philosophy) expands the notion of value beyo ...
*
Vamachara ''Vāmācāra'' ( sa, वामाचार, ) is a tantric term meaning "left-hand path" and is synonymous with the Sanskrit term ''vāmamārga''. It is used to describe a particular mode of worship or '' sadhana'' (spiritual practice) that is ...
*
Vajrayana Vajrayāna ( sa, वज्रयान, "thunderbolt vehicle", "diamond vehicle", or "indestructible vehicle"), along with Mantrayāna, Guhyamantrayāna, Tantrayāna, Secret Mantra, Tantric Buddhism, and Esoteric Buddhism, are names referring t ...
* Virtual *
Virtue Virtue ( la, virtus) is morality, moral excellence. A virtue is a trait or quality that is deemed to be morally good and thus is Value (ethics), valued as a foundation of principle and good moral being. In other words, it is a behavior that sh ...


W

* Well-founded phenomenon *
Work of art A work of art, artwork, art piece, piece of art or art object is an artistic creation of aesthetic value. Except for "work of art", which may be used of any work regarded as art in its widest sense, including works from literature ...
*
Wrong A wrong (from Old English – 'crooked') is an act that is illegal or immoral. Legal wrongs are usually quite clearly defined in the law of a state and/or jurisdiction. They can be divided into civil wrongs and crimes (or ''criminal offens ...


Y

* Yi *
Yoga Yoga (; sa, योग, lit=yoke' or 'union ) is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India and aim to control (yoke) and still the mind, recognizing a detached witness-consciou ...
*
Yidam ''Yidam'' is a type of deity associated with tantric or Vajrayana Buddhism said to be manifestations of Buddhahood or enlightened mind. During personal meditation (''sādhana'') practice, the yogi identifies their own form, attributes and mi ...


Z

*
Zeitgeist In 18th- and 19th-century German philosophy, a ''Zeitgeist'' () ("spirit of the age") is an invisible agent, force or Daemon dominating the characteristics of a given epoch in world history. Now, the term is usually associated with Georg W. ...
{{philosophy topics