Philosophical theory
Encyclopedia
In the general sense, a philosophical theory is a theory
Theory
The English word theory was derived from a technical term in Ancient Greek philosophy. The word theoria, , meant "a looking at, viewing, beholding", and referring to contemplation or speculation, as opposed to action...

 that explains or accounts for a general philosophy
Philosophy
Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

 or specific branch of philosophy. While any sort of thesis
Thesis
A dissertation or thesis is a document submitted in support of candidature for an academic degree or professional qualification presenting the author's research and findings...

 or opinion may be termed a theory, in analytic philosophy
Analytic philosophy
Analytic philosophy is a generic term for a style of philosophy that came to dominate English-speaking countries in the 20th century...

 it is thought best to reserve the word "theory" for systematic, comprehensive attempts to solve problems.

The elementary theorem
Theorem
In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and previously accepted statements, such as axioms...

s that comprise a philosophical theory consist of statements
Statement (logic)
In logic a statement is either a meaningful declarative sentence that is either true or false, or what is asserted or made by the use of a declarative sentence...

 which are believed
Belief
Belief is the psychological state in which an individual holds a proposition or premise to be true.-Belief, knowledge and epistemology:The terms belief and knowledge are used differently in philosophy....

 to be true
Truth
Truth has a variety of meanings, such as the state of being in accord with fact or reality. It can also mean having fidelity to an original or to a standard or ideal. In a common usage, it also means constancy or sincerity in action or character...

 by the thinkers who accept them, and which may or may not be empirical
Empiricism
Empiricism is a theory of knowledge that asserts that knowledge comes only or primarily via sensory experience. One of several views of epistemology, the study of human knowledge, along with rationalism, idealism and historicism, empiricism emphasizes the role of experience and evidence,...

. The sciences have a very clear idea of what a theory is, however in the arts, such as philosophy the definition is more hazy. Philosophical theories are not necessarily scientific theories
Scientific theory
A scientific theory comprises a collection of concepts, including abstractions of observable phenomena expressed as quantifiable properties, together with rules that express relationships between observations of such concepts...

, although they may consist of both empirical and non-empirical statements.

In essence, the collective statements of all philosophical movement
Philosophical movement
A philosophical movement is either the appearance or increased popularity of a specific school of philosophy, or a fairly broad but identifiable sea-change in philosophical thought on a particular subject...

s, schools of thought, and belief system
Belief system
A belief system is a set of mutually supportive beliefs. The beliefs may be religious, philosophical, ideological or a combination of these.The British philosopher Stephen Law has described some belief systems as "claptrap" and said that they "draw people in and hold them captive so they become...

s consist of philosophical theories. Also included among philosophical theories are many principle
Principle
A principle is a law or rule that has to be, or usually is to be followed, or can be desirably followed, or is an inevitable consequence of something, such as the laws observed in nature or the way that a system is constructed...

s, hypotheses
Hypothesis
A hypothesis is a proposed explanation for a phenomenon. The term derives from the Greek, ὑποτιθέναι – hypotithenai meaning "to put under" or "to suppose". For a hypothesis to be put forward as a scientific hypothesis, the scientific method requires that one can test it...

, rules
Norm (philosophy)
Norms are concepts of practical import, oriented to effecting an action, rather than conceptual abstractions that describe, explain, and express. Normative sentences imply “ought-to” types of statements and assertions, in distinction to sentences that provide “is” types of statements and assertions...

, paradox
Paradox
Similar to Circular reasoning, A paradox is a seemingly true statement or group of statements that lead to a contradiction or a situation which seems to defy logic or intuition...

es, law
Law
Law is a system of rules and guidelines which are enforced through social institutions to govern behavior, wherever possible. It shapes politics, economics and society in numerous ways and serves as a social mediator of relations between people. Contract law regulates everything from buying a bus...

s, as well as 'ologies, 'isms, 'sis's, and effects.

Some examples of philosophical theories include:
  • Metatheory
    Metatheory
    A metatheory or meta-theory is a theory whose subject matter is some other theory. In other words it is a theory about a theory. Statements made in the metatheory about the theory are called metatheorems....

    ; theories about the formation and content of theories, such as Kurt Gödel
    Kurt Gödel
    Kurt Friedrich Gödel was an Austrian logician, mathematician and philosopher. Later in his life he emigrated to the United States to escape the effects of World War II. One of the most significant logicians of all time, Gödel made an immense impact upon scientific and philosophical thinking in the...

    's incompleteness theorem.
  • Political theory; theories that underlie a political philosophy
    Political philosophy
    Political philosophy is the study of such topics as liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it...

    , such as John Rawls
    John Rawls
    John Bordley Rawls was an American philosopher and a leading figure in moral and political philosophy. He held the James Bryant Conant University Professorship at Harvard University....

    ' theory of justice
    A Theory of Justice
    A Theory of Justice is a book of political philosophy and ethics by John Rawls. It was originally published in 1971 and revised in both 1975 and 1999. In A Theory of Justice, Rawls attempts to solve the problem of distributive justice by utilising a variant of the familiar device of the social...

    .
  • Ethical theory and meta-ethics
    Meta-ethics
    In philosophy, meta-ethics is the branch of ethics that seeks to understand the nature of ethical properties, statements, attitudes, and judgments. Meta-ethics is one of the three branches of ethics generally recognized by philosophers, the others being normative ethics and applied ethics. Ethical...

    ; theories about the nature and purpose of ethical statements, such as the ethical theory of Immanuel Kant
    Immanuel Kant
    Immanuel Kant was a German philosopher from Königsberg , researching, lecturing and writing on philosophy and anthropology at the end of the 18th Century Enlightenment....

    .
  • Critical theory
    Critical theory
    Critical theory is an examination and critique of society and culture, drawing from knowledge across the social sciences and humanities. The term has two different meanings with different origins and histories: one originating in sociology and the other in literary criticism...

    ; in its narrow sense, a Western Europe
    Western Europe
    Western Europe is a loose term for the collection of countries in the western most region of the European continents, though this definition is context-dependent and carries cultural and political connotations. One definition describes Western Europe as a geographic entity—the region lying in the...

    an body of Frankfurt School
    Frankfurt School
    The Frankfurt School refers to a school of neo-Marxist interdisciplinary social theory, particularly associated with the Institute for Social Research at the University of Frankfurt am Main...

     Marxist thought that aims at criticizing and transforming, rather than merely explaining, social structures. In a broader sense, "critical theory" relates to a wide variety of political, literary, and philosophical positions that take at least some of their inspiration from the Frankfurt School and its dialectic, and that typically contest the possibility of objectivity or aloofness from political positions and privileges.


Philosophical theories may also take the form of a life stance
Life stance
A person's life stance, or lifestance, is their relation with what they accept as being of ultimate importance, the presuppositions and theory of this, and the commitments and practice of working it out in living....

, religion
Religion
Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

, world view
World view
A comprehensive world view is the fundamental cognitive orientation of an individual or society encompassing the entirety of the individual or society's knowledge and point-of-view, including natural philosophy; fundamental, existential, and normative postulates; or themes, values, emotions, and...

, or ideology
Ideology
An ideology is a set of ideas that constitutes one's goals, expectations, and actions. An ideology can be thought of as a comprehensive vision, as a way of looking at things , as in common sense and several philosophical tendencies , or a set of ideas proposed by the dominant class of a society to...

.

See also

:Category:Ideologies
  • List of philosophical theories
  • Glossary of philosophical isms
  • Metaphilosophy
    Metaphilosophy
    Metaphilosophy, also called philosophy of philosophy, is the study of the nature, aims, and methods of philosophy. The term is derived from Greek word meta μετά and philosophía φιλοσοφία ....

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