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Epistemology: Quick Facts

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Facts

Also Known As gnosiology • theory of knowledge

Photos

Four colored straws in a glass of water appear bent at the water's surface, visually demonstrating the refraction of light.
Saul Kripke
William Orpen: G.E. Moore
Ludwig Wittgenstein
The Greek philosopher Plato
Marble bust of Aristotle with a beard and draped robe, showing detailed facial features and wavy hair, set against a dark background.
Christian bishop and theologian St. Augustine
Luca della Robbia: St. Anselm of Canterbury
Andrea da Firenze: The Triumph of St. Thomas Aquinas
John Duns Scotus
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Key People

Marble bust of Aristotle with a beard and draped robe, showing detailed facial features and wavy hair, set against a dark background.
Aristotle
Greek philosopher
The Greek philosopher Plato
Plato
Greek philosopher
Justus of Ghent: Saint Augustine
St. Augustine
Christian bishop and theologian
John Locke
John Locke
English philosopher
Profile portrait of Immanuel Kant facing right, framed by a green Ouroboros serpent forming an oval, with a geometric symbol below the frame.
Immanuel Kant
German philosopher
Georg Wilhelm Friedrich Hegel
Georg Wilhelm Friedrich Hegel
German philosopher
René Descartes
René Descartes
French mathematician and philosopher
David Hume
David Hume
Scottish philosopher
Bertrand Russell
Bertrand Russell
British logician and philosopher
Engraved portrait of Gottfried Wilhelm von Leibniz with long curly hair, wearing a buttoned coat and cravat, facing forward.
Gottfried Wilhelm Leibniz
German philosopher and mathematician
John Searle
John Searle
American philosopher
George Berkeley
George Berkeley
Irish philosopher
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Johann Gottlieb Fichte
German philosopher
William of Ockham
William of Ockham
English philosopher
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Marjorie Grene
American philosopher
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Alexius Meinong
Austrian philosopher and psychologist
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C.I. Lewis
American philosopher and logician
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Petrus Aureoli
French philosopher
Karl Popper
Karl Popper
British philosopher
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Johannes Nikolaus Tetens
German mathematician, economist, and philosopher