- Hegel, Georg Wilhelm Friedrich, 1770-1831 (54)
- Horkheimer, Max, 1895-1973 (12)
- Kant, Immanuel, 1724-1804 (12)
- Michel, Karl Markus, 1929- (12)
- Glockner, Hermann, 1896- (11)
- Moldenhauer, Eva (11)
- Weischedel, Wilhelm, 1905-1975 (10)
- Heidegger, Martin, 1889-1976 (9)
- Nietzsche, Friedrich Wilhelm, 1844-1900 (8)
- Schmid Noerr, Gunzelin (7)
- Boumann, Ludwig (6)
- Henning, Leopold von (6)
- Gans, Eduard, 1798-1839 (5)
- Schlechta, Karl, 1904- (5)
- Schmidt, Alfred (5)
- Michelet, Karl Ludwig, 1801-1893 (4)
- Wittgenstein, Ludwig, 1889-1951 (4)
- Adorno, Theodor W., 1903-1969 (3)
- Gehlen, Arnold, 1904-1976 (3)
- Glöckner, Hermann, 1889- (3)
- Herrmann, Friedrich Wilhelm von (3)
- Tiedemann, Rolf, 1932- (3)
- Bonsiepen, Wolfgang (2)
- Grotsch, Klaus (2)
- Hegel, Karl, 1813-1901 (2)
- Hotho, Heinrich Gustav (2)
- Lucas, Hans-Christian (2)
- Marheineke, Philipp, 1780-1846 (2)
- Nicolin, Friedhelm, 1926- (2)
- Rameil, Udo (2)
- Rosenkranz, Karl, 1805-1879 (2)
- Schulze, Johannes (2)
- Schüler, Gisela (2)
- Anscombe, G. E. M. (Gertrude Elizabeth Margaret), 1919- (1)
- Aristotle (1)
- Baars, Jan (1)
- Baum, Manfred, 1939- (1)
- Blust, Franz-Karl (1)
- Bosanquet, R. G. (1)
- Buchenau, Artur, 1879- (1)
- Cantor, Georg, 1845-1918 (1)
- Cassirer, Ernst, 1874-1945 (1)
- Colli, Giorgio (1)
- Diamond, Cora (1)
- Ebert, Theodor (1)
- Flashar, Hellmut (1)
- Frings, Manfred S., 1925- (1)
- Gadamer, Hans Georg, 1900- (1)
- Grumach, Ernst (1)
- Hogemann, Friedrich (1)
- Jaeger, Petra, 1949- (1)
- Jaeschke, Walter (1)
- Jamme, Christoph, 1953- (1)
- Jaspers, Karl, 1883-1969 (1)
- Kriegel, Peter (1)
- Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716 (1)
- McGuinness, Brian (1)
- Meist, Kurt Rainer (1)
- Michalski, Mark (1)
- Michel-Moldenhauer, Eva (1)
- Montinari, Mazzino, 1928- (1)
- Neumann, Günther (1)
- Ochwadt, Curd (1)
- Reinicke, Helmut, 1941- (1)
- Rhees, Rush (1)
- Rill, Ingo (1)
- Samson, Lothar, 1945- (1)
- Scheler, Max, 1874-1928 (1)
- Schmidt, Raymund, 1890- (1)
- Schulte, Joachim (1)
- Waismann, Friedrich (1)
- Weisser-Lohmann, Elisabeth (1)
- Wright, G. H. von (Georg Henrik), 1916- (1)