Foundationalism concerns philosophical theories of knowledge resting upon non-inferential justified belief, or some secure foundation of certainty such as a conclusion inferred from a basis of sound premises. The main rival of the foundationalist theory of justification is the coherence theory of justification, whereby a body of knowledge, not requiring a secure foundation, can be established by the interlocking strength of its components, like a puzzle solved without prior certainty that each small region was solved correctly.
Logical positivism, later called logical empiricism, and both of which together are also known as neopositivism, is a movement whose central thesis is the verification principle. This theory of knowledge asserts that only statements verifiable through direct observation or logical proof are meaningful in terms of conveying truth value, information or factual content. Starting in the late 1920s, groups of philosophers, scientists, and mathematicians formed the Berlin Circle and the Vienna Circle, which, in these two cities, would propound the ideas of logical positivism.
Postmodern philosophy is a philosophical movement that arose in the second half of the 20th century as a critical response to assumptions allegedly present in modernist philosophical ideas regarding culture, identity, history, or language that were developed during the 18th-century Age of Enlightenment. Postmodernist thinkers developed concepts like différance, repetition, trace, and hyperreality to subvert "grand narratives", univocity of being, and epistemic certainty. Postmodern philosophy questions the importance of power relationships, personalization, and discourse in the "construction" of truth and world views. Many postmodernists appear to deny that an objective reality exists, and appear to deny that there are objective moral values.
Willard Van Orman Quine was an American philosopher and logician in the analytic tradition, recognized as "one of the most influential philosophers of the twentieth century". He served as the Edgar Pierce Chair of Philosophy at Harvard University from 1956 to 1978.
Pragmatism is a philosophical tradition that views language and thought as tools for prediction, problem solving, and action, rather than describing, representing, or mirroring reality. Pragmatists contend that most philosophical topics—such as the nature of knowledge, language, concepts, meaning, belief, and science—are best viewed in terms of their practical uses and successes.
Analytic philosophy is an analysis focused, broad, contemporary movement or tradition within Western philosophy, especially anglophone philosophy. Analytic philosophy is characterized by a clarity of prose; rigor in arguments; and making use of formal logic and mathematics, and, to a lesser degree, the natural sciences. It is further characterized by an interest in language and meaning known as the linguistic turn. It has developed several new branches of philosophy and logic, notably philosophy of language, philosophy of mathematics, philosophy of science, modern predicate logic and mathematical logic.
Richard McKay Rorty was an American philosopher. Educated at the University of Chicago and Yale University, Rorty's academic career included appointments as the Stuart Professor of Philosophy at Princeton University, the Kenan Professor of Humanities at the University of Virginia, and as a professor of comparative literature at Stanford University. Among his most influential books are Philosophy and the Mirror of Nature (1979), Consequences of Pragmatism (1982), and Contingency, Irony, and Solidarity (1989).
John Henry McDowell is a South African philosopher, formerly a fellow of University College, Oxford, and now university professor at the University of Pittsburgh. Although he has written on metaphysics, epistemology, ancient philosophy, nature, and meta-ethics, McDowell's most influential work has been in the philosophy of mind and philosophy of language. McDowell was one of three recipients of the 2010 Andrew W. Mellon Foundation's Distinguished Achievement Award, and is a Fellow of both the American Academy of Arts & Sciences and the British Academy.
Wilfrid Stalker Sellars was an American philosopher and prominent developer of critical realism, who "revolutionized both the content and the method of philosophy in the United States".
Contemporary philosophy is the present period in the history of Western philosophy beginning at the early 20th century with the increasing professionalization of the discipline and the rise of analytic and continental philosophy.
In philosophy, the terms obscurantism and obscurationism identify and describe the anti-intellectual practices of deliberately presenting information in an abstruse and imprecise manner that limits further inquiry and understanding of a subject. The two historical and intellectual denotations of obscurantism are: (1) the deliberate restriction of knowledge — opposition to the dissemination of knowledge; and (2) deliberate obscurity — a recondite style of writing characterized by deliberate vagueness.
Laurence BonJour is an American philosopher and Emeritus of Philosophy at the University of Washington.
The linguistic turn was a major development in Western philosophy during the early 20th century, the most important characteristic of which is the focusing of philosophy primarily on the relations between language, language users, and the world.
Neopragmatism is a variant of pragmatism that infers that the meaning of words is a result of how they are used, rather than the objects they represent.
Postanalytic philosophy describes a detachment from the mainstream philosophical movement of analytic philosophy, which is the predominant school of thought in English-speaking countries. The Internet Encyclopedia of Philosophy defines the movement as denoting "philosophers who owe much to Analytic philosophy but who think that they have made some significant departure from it." The movement cannot be unified into a single positive project as it is defined in terms of what it stands against, although it has generally been seen as bridging the gap between analytic and continental philosophy.
Verificationism, also known as the verification principle or the verifiability criterion of meaning, is the philosophical doctrine which asserts that a statement is meaningful only if it is either empirically verifiable or a truth of logic.
The analytic–synthetic distinction is a semantic distinction used primarily in philosophy to distinguish between propositions that are of two types: analytic propositions and synthetic propositions. Analytic propositions are true or not true solely by virtue of their meaning, whereas synthetic propositions' truth, if any, derives from how their meaning relates to the world.
Joseph Zalman Margolis was an American philosopher. A radical historicist, he authored many books critical of the central assumptions of Western philosophy, and elaborated a robust form of relativism.
Western philosophy refers to the philosophical thought, traditions and works of the Western world. Historically, the term refers to the philosophical thinking of Western culture, beginning with the ancient Greek philosophy of the pre-Socratics. The word philosophy itself originated from the Ancient Greek philosophía (φιλοσοφία), literally, "the love of wisdom" Ancient Greek: φιλεῖν phileîn, "to love" and σοφία sophía, "wisdom".
American philosophy is the activity, corpus, and tradition of philosophers affiliated with the United States. The Internet Encyclopedia of Philosophy notes that while it lacks a "core of defining features, American Philosophy can nevertheless be seen as both reflecting and shaping collective American identity over the history of the nation". The philosophy of the Founding Fathers of the United States is largely seen as an extension of the European Enlightenment. A small number of philosophies are known as American in origin, namely pragmatism and transcendentalism, with their most prominent proponents being the philosophers William James and Ralph Waldo Emerson respectively.
