Philosophy: Biographies
- Abano, Pietro D'
- Abelard, Peter
- Aben Ezra
- Acosta, Uriel
- Adelard Of Bath
- Adorno, Theodor Wiesengrund
- Aenesidemus
- Alain De Lille
- Alexander Of Aphrodisias
- Alexander Of Hales
- Alexander, Samuel
- Alfarabius
- Aliotta, Antonio
- Amalric Of Bena
- Anaxagoras
- Anaximander
- Anaximenes
- Anderson, John
- Antisthenes
- Aquinas, Saint Thomas
- Arcesilaus
- Ardigò, Roberto
- Areopagite
- Aristippus
- Aristotle
- Augustine, Saint
- Austin, John Langshaw
- Avempace
- Averroës
- Avicebron
- Avicenna
- Ayer, Sir Alfred Jules
- Bachelard, Gaston
- Bacon, Francis, English Philosopher And Statesman
- Bacon, Roger
- Bain, Alexander
- Bax, Ernest Belfort
- Bayle, Pierre
- Bentham, Jeremy
- Bergson, Henri
- Berkeley, George
- Bias, Greek Sage
- Black, Max
- Bloch, Ernst
- Blondel, Maurice
- Boethius
- Boetius
- Bosanquet, Bernard
- Bowne, Borden Parker
- Bradley, Francis Herbert
- Brentano, Franz
- Brown, Norman Oliver
- Bruno, Giordano
- Brunschvicg, Léon
- Buber, Martin
- Buridan, Jean
- Butler, Judith
- Campanella, Tommaso
- Carnap, Rudolf
- Carneades
- Carpocrates
- Carus, Paul
- Cassirer, Ernst
- Celsus
- Chaadayev, Piotr Yakovlevich
- Champeaux, William Of
- Chrysippus
- Clarke, Samuel
- Cleanthes
- Cohen, Hermann
- Cohen, Morris Raphael
- Collingwood, Robin George
- Comte, Auguste
- Condillac, Étienne Bonnot De
- Croce, Benedetto
- Crusius, Christian August
- Cudworth, Ralph
- Cumberland, Richard, 1631–1718, English Philosopher
- Davidson, Donald Herbert
- Democritus
- Derrida, Jacques
- Descartes, René
- Dessoir, Max
- Dewey, John
- Dilthey, Wilhelm
- Diogenes
- Diogenes Laërtius
- Diogenes Of Apollonia
- Dionysius The Areopagite, Saint
- Driesch, Hans Adolf Eduard
- Drobisch, Moritz Wilhelm
- Duns Scotus, John
- Empedocles
- Epictetus
- Epicurus
- Erasmus
- Erigena, John Scotus
- Eriugena, John Scotus
- Eubulides
- Eucken, Rudolf Christoph
- Euclid Of Megara
- Euhemerus
- Eunapius
- Farabi, Al-
- Ferguson, Adam
- Ferrier, James Frederick
- Feuerbach, Ludwig Andreas
- Feyjóo Y Montenegro, Benito Gerónimo
- Fichte, Johann Gottlieb
- Ficino, Marsilio
- Fludd, Robert
- Foucault, Michel
- Fouillée, Alfred Jules Emile
- Frankel, Charles
- Frege, Gottlob
- Gabirol
- Gadamer, Hans-Georg
- Gemistus Pletho, Georgius
- Genovesi, Antonio
- Gentile, Giovanni
- Gershon, Levi Ben
- Geulincx, Arnold
- Ghazali, Al-
- Gilbert De La Porrée
- Gilson, Étienne
- Glanvill, Joseph
- Goodman, Nelson
- Gorgias
- Green, Thomas Hill
- Habermas, Jürgen
- Hägerstrom, Axel
- Hales, Alexander Of
- Halevy, Judah
- Hamilton, Sir William, Scottish Philosopher
- Hampshire, Sir Stuart Newton
- Hartmann, Eduard Von
- Hartmann, Nicolai
- Hegel, Georg Wilhelm Friedrich
- Heidegger, Martin
- Helvétius, Claude Adrien
- Heraclitus
- Herbart, Johann Friedrich
- Hobbes, Thomas
- Hocking, William Ernest
- Holbach, Paul Henri Thiry, Baron D'
- Hook, Sidney
- Horkheimer, Max
- Hugh Of Saint Victor
- Hui Shih
- Hume, David
- Husserl, Edmund
- Hutcheson, Francis
- Hypatia
- Høffding, Harald
- Iamblichus
- Ibn Bajja
- Ibn Rushd
- Ibn Sina
- Ibn Tufayl
- Jacobi, Friedrich Heinrich
- Jamblichus
- James, Henry, American Student Of Religion And Social Problems
- James, William
- Jaspers, Karl
- Joad, Cyril Edwin Mitchinson
- John Of Salisbury
- John Scotus
- Johnson, Alexander Bryan
- Joubert, Joseph
- Jouffroy, Théodore Simon
- Kant, Immanuel
- Kierkegaard, Søren Aabye
- Kilpatrick, William Heard
- Kindi, Al-
- Kołakowski, Leszek
- La Mettrie, Julien Offray De
- Laërtius, Diogenes
- Lange, Friedrich Albert
- Langer, Susanne Knauth
- Lao Tzu
- Lavater, Johann Kaspar
- Leibniz, Gottfried Wilhelm, Baron Von
- Leucippus
- Levi Ben Gershon
- Lewis, Clarence Irving
- Locke, John
- Longinus, C.213–273, Greek Rhetorician And Philosopher
- Lotze, Rudolf Hermann
- Lovejoy, Arthur Oncken
- Lull, Ramón
- Lully, Raymond
- Macintyre, Alasdair C.
- Maimon, Salomon
- Maine De Biran
- Malebranche, Nicolas
- Mansel, Henry Longueville
- Marcel, Gabriel
- Maritain, Jacques
- Martineau, James
- Mccosh, James
- Mctaggart, John Mctaggart Ellis
- Mead, George Herbert
- Mendelssohn, Moses
- Merleau-Ponty, Maurice
- Mill, James
- Mill, John Stuart
- Millar, John
- Mills, Charles Wade
- Mirandola, Giovanni Pico Della
- Mo Ti
- Mo-Tzu
- Montesquieu, Charles Louis De Secondat, Baron De La Brède Et De
- Moore, George Edward
- More, Henry
- Nagel, Ernest
- Nelson, Leonard
- Neurath, Otto
- Nietzsche, Friedrich Wilhelm
- Norris, John
- Nozick, Robert
- Nussbaum, Martha Craven
- Occam, William Of
- Ockham, William Of
- Origen
- Ortega Y Gasset, José
- Parmenides
- Peirce, Charles Sanders
- Perry, Ralph Barton
- Philo
- Philo Judaeus
- Philostratus
- Pico Della Mirandola, Giovanni, Conte
- Pierre De La Ramée
- Pietro D'abano
- Plato
- Plotinus
- Pomponazzi, Pietro
- Popper, Sir Karl Raimund
- Popper-Lynkeus, Josef
- Porphyry, Greek Scholar
- Posidonius
- Proclus
- Protagoras
- Pseudo-Dionysius
- Pyrrho
- Pythagoras
- Quine, W. V.
- Ramée, Pierre De La
- Ramus, Petrus
- Rawls, John Bordley
- Reid, Thomas
- Romero, Francisco
- Rorty, Richard
- Roscelin
- Rosenzweig, Franz
- Rousseau, Jean Jacques
- Royce, Josiah
- Russell, Bertrand Arthur William Russell, 3D Earl
- Ryle, Gilbert
- Salisbury, John Of
- Santayana, George
- Scheler, Max
- Schelling, Friedrich Wilhelm Joseph Von
- Schiller, Ferdinand Canning Scott
- Schlick, Moritz
- Schopenhauer, Arthur
- Scot, Michael
- Scotus
- Seth, Andrew
- Shaftesbury, Anthony Ashley Cooper, 3D Earl Of
- Sidgwick, Henry
- Socrates
- Spencer, Herbert
- Speusippus
- Spinoza, Baruch
- Stewart, Dugald
- Stirling, James Hutchison
- Strauss, Leo
- Strawson, Peter Frederick
- Tarski, Alfred
- Teilhard De Chardin, Pierre
- Telesio, Bernardino
- Thales
- Theophrastus
- Thomas Aquinas, Saint
- Thomasius, Christian
- Timon Of Phlius
- Tucker, Abraham
- Unamuno, Miguel De
- Vaihinger, Hans
- Vanini, Lucilio
- Varona Y Pera, Enrique José
- Vattel, Emerich De
- Vico, Giovanni Battista
- Vives, Juan Luis
- Walzer, Michael
- Weil, Simone
- William Of Champeaux
- William Of Occam
- Williams, Sir Bernard
- Wittgenstein, Ludwig Josef Johann
- Wolf, Christian Von
- Wolff, Christian Von
- Woodbridge, Frederick James Eugene
- Xenocrates
- Xenophanes
- Young, Iris Marion
- Zeno Of Citium
- Zeno Of Elea
- Zoilus
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