- Hegel, Georg Wilhelm Friedrich, 1770-1831 (46)
- Michel, Karl Markus, 1929- (25)
- Moldenhauer, Eva (24)
- Kant, Immanuel, 1724-1804 (7)
- Glockner, Hermann, 1896- (6)
- Weischedel, Wilhelm, 1905-1975 (6)
- Heidegger, Martin, 1889-1976 (4)
- Aristotle (3)
- Henning, Leopold von (3)
- Adorno, Theodor W., 1903-1969 (2)
- Boumann, Ludwig (2)
- Diderot, Denis, 1713-1784 (2)
- Gans, Eduard, 1798-1839 (2)
- Hutchins, Robert Maynard, 1899-1977 (2)
- Hübscher, Arthur, 1897- (2)
- Michelet, Karl Ludwig, 1801-1893 (2)
- Neumann, Günther (2)
- Nicolin, Friedhelm, 1926- (2)
- Nietzsche, Friedrich Wilhelm, 1844-1900 (2)
- Schopenhauer, Arthur, 1788-1860 (2)
- Schüler, Gisela (2)
- Tiedemann, Rolf, 1932- (2)
- Wittgenstein, Ludwig, 1889-1951 (2)
- Anscombe, G. E. M. (Gertrude Elizabeth Margaret), 1919- (1)
- Assézat, J. (1)
- Ayer, A. J. (Alfred Jules), 1910-1989 (1)
- Bacon, Francis, 1561-1626 (1)
- Baeumler, Alfred, 1887-1968 (1)
- Baum, Manfred, 1939- (1)
- Colli, Giorgio (1)
- Curley, E. M. (Edwin M.), 1937- (1)
- Dayan, Maurice (1)
- Descartes, René, 1596-1650 (1)
- Dewey, John, 1859-1952 (1)
- Ebert, Theodor, 1937- (1)
- Fisch, Max Harold, 1900- (1)
- Flashar, Hellmut (1)
- Gehlen, Arnold, 1904-1976 (1)
- Hegel, Karl, 1813-1901 (1)
- Hoffmeister, Johannes (1)
- Hogemann, Friedrich (1)
- Horkheimer, Max, 1895-1973 (1)
- Hotho, Heinrich Gustav (1)
- Houser, Nathan (1)
- Jamme, Christoph, 1953- (1)
- Kloesel, Christian J. W. (1)
- Kollesch, Jutta (1)
- Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716 (1)
- Lewinter, Roger (1)
- Marheineke, Philipp, 1780-1846 (1)
- McDermott, John J. (John Joseph), 1932- (1)
- McGuinness, Brian (1)
- Meist, Kurt Rainer (1)
- Merleau-Ponty, Maurice, 1908-1961 (1)
- Michalski, Mark (1)
- Michel-Moldenhauer, Eva (1)
- Montinari, Mazzino, 1928- (1)
- Moore, Edward C. (Edward Carter), 1917- (1)
- Morris, C. R. (Charles Richard) (1)
- Morris, John Martin, 1928- (1)
- Morris, Mary, 1901- (1)
- Oehler, Klaus (1)
- Peirce, Charles S. (Charles Sanders), 1839-1914 (1)
- Reinicke, Helmut, 1941- (1)
- Rosenkranz, Karl, 1805-1879 (1)
- Samson, Lothar, 1945- (1)
- Schmidt, Alfred (1)
- Schulze, Johannes (1)
- Spinoza, Benedictus de, 1632-1677 (1)
- Tourneux, Maurice (1)
- Waismann, Friedrich (1)
- Wolfson, Harry Austryn, 1887-1974 (1)
- Wright, G. H. von (Georg Henrik), 1916- (1)