Spinoza in the context of "Peter Abelard"

Gilles Louis René Deleuze (18 January 1925 – 4 November 1995) was a French philosopher who, from the early 1950s until his death in 1995, wrote on philosophy, literature, film, and fine art. His most popular works were the two volumes of Capitalism and Schizophrenia: Anti-Oedipus (1972) and A Thousand Plateaus (1980), both co-written with psychoanalyst Félix Guattari. His metaphysical treatise Difference and Repetition (1968) is considered to be his magnum opus.

An important part of Deleuze's oeuvre is devoted to the reading of other philosophers: the Stoics, Leibniz, Hume, Kant, Nietzsche, Spinoza, and Bergson. A. W. Moore, citing Bernard Williams's criteria for a great thinker, ranks Deleuze among the "greatest philosophers". Although he once characterized himself as a "pure metaphysician", his work has influenced a variety of disciplines across the humanities, including philosophy, art, and literary theory, as well as movements such as post-structuralism and postmodernism.

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 a substratum or a thing-in-itself. Substances are particulars that are ontologically independent: they are able to exist all by themselves. Another defining feature often attributed to substances is their ability to undergo changes. Changes involve something existing before, during and after the change. They can be described in terms of a persisting substance gaining or losing properties. Attributes or properties, on the other hand, are entities that can be exemplified by substances. Properties characterize their bearers; they express what their bearer is like.

Substance is a key concept in ontology, the latter in turn part of metaphysics, which may be classified into monist, dualist, or pluralist varieties according to how many substances or individuals are said to populate, furnish, or exist in the world. According to monistic views, there is only one substance. Stoicism and Spinoza, for example, hold monistic views, that pneuma or God, respectively, is the one substance in the world. These modes of thinking are sometimes associated with the idea of immanence. Dualism sees the world as being composed of two fundamental substances (for example, the Cartesian substance dualism of mind and matter). Pluralist philosophies include Plato's Theory of Forms and Aristotle's hylomorphic categories.

Harold Henry Joachim, FBA (/ˈdʒoʊəkɪm/; 28 May 1868 – 30 July 1938) was a British idealist philosopher. A disciple of Francis Herbert Bradley, whose posthumous papers he edited, Joachim is now identified with the later days of the British idealist movement. He is generally credited with the definitive formulation of the coherence theory of truth, in his book The Nature of Truth (1906). He was also a scholar of Aristotle and Spinoza.

Amélie Oksenberg Rorty (May 20, 1932 – September 18, 2020) was a Belgian-born American philosopher known for her work in the philosophy of mind (in particular on the emotions), history of philosophy (especially Aristotle, Spinozaand Descartes), and moral philosophy.

William James Durant (/dəˈrænt/; November 5, 1885 – November 7, 1981) was an American historian and philosopher, best known for his eleven-volume work, The Story of Civilization, which contains and details the history of Eastern and Western civilizations. It was written in collaboration with his wife, Ariel Durant, and published between 1935 and 1975. He was earlier noted for The Story of Philosophy (1926), described as "a groundbreaking work that helped to popularize philosophy".

Durant conceived of philosophy as total perspective or seeing things sub specie totius (i.e., "from the perspective of the whole")—a phrase inspired by Spinoza's sub specie aeternitatis, roughly meaning "from the perspective of the eternal". He sought to unify and humanize the great body of historical knowledge, which had grown voluminous and become fragmented into esoteric specialties, and to vitalize it for contemporary application. As a result of their success, he and his wife were jointly awarded the Pulitzer Prize for General Nonfiction in 1968 and the Presidential Medal of Freedom in 1977.