Cabanis, Pierre Jean George | Caerellia| Caesalpinus, Andreas| Caird, Edward| Caird, John| Calker, Friedrich van| Camerarius, Joachim | Campanella, Tommaso| Cantor, Georg| Cardano, Geronimo| Carnap, Rudolf| Carus, Friedrich August| Carus, Karl Gustav| Casaiodorus, Magnus Aurelius | Cassiodorius, Magnus Aurelius | Castillon, F.| Cavendish, Margaret| &;elpanov, Georgij Ivanovi&;| &;erny&;evskij, Nikolaj Gavrilovi&;| Cesalpino, Andrea| Charlier, Johann| Charron, Pierre| Chateaubriand, François René| Châtelet-Lomont, Gabrielle-Emilie du| Cheilonis| Cherbury, Herbert von| Chisholm, Roderick M.| Chrysippos| Chomsky, Noam| Church, Alonzo| Chwistek, Leon| &;i&;erin, Boris Nikolaevi&;| Cicero, Marcus Tullius| Cioran, Émile Michel| Clauberg, Johann| Clodius, Chr. Aug. Heinr.| Cohen, Hermann| Cohen, Paul Joseph| Cohn, Georg| Cohn, Jonas| Coleridge, Samuel Tylor| Collins, John Anthony| Comnena, Anna| Comte,Auguste| Condillac, Étienne Bonnot de| Condorcet, Marie Jean Antoine de| Conrad-Martius, Hedwig| Coornhert, Dirck Volkertsen| Cordemoy, Géraud de| Cornelius, Heinrich| Cousin, Victor| Couturat, Louis| Cremonius, Caesar| Crousaz, Jean Pierre de| Crusius, Christian August| Csató, Edward| Cudworth Masham, Damaris| Cudworth, Ralph| Curry, Haskell B.| Cusanus, Nicolaus| Cze&;owski, Tadeusz
Abaelard – Ayer| Baader – Burski| Cabanis – Czeżowski | Dacqué- Durkheim | Ebbinghaus- Ewald | Faber- Fritzsche | Galenos- Gunsun Lun | Häberlin- Hypatia | Iamblichos- Iulianus | Jacoby- Juschkewitsch | Kaila- Kurylowicz | LaMettrie – Lykon | Maass- Myia | Nalbandjan- Nyman | Ockham- Owen | Palágyi- Pythagoras | Queccius- Quine | Radischtschew- Ryle | Saarnio- Szumowski | Taine- Tyrsenis | Uphues| Valla- Vorländer | Wahl- Wwedenski | Xeniades- Xenophon | Zadeh- Zoilos