- Dilthey, Wilhelm, 1833-1911 (7)
- Wittgenstein, Ludwig, 1889-1951 (4)
- Herrmann, Ulrich, 1939- (2)
- Orth, Ernst Wolfgang (2)
- Rhees, Rush (2)
- Anscombe, G. E. M. (Gertrude Elizabeth Margaret), 1919- (1)
- Colli, Giorgio (1)
- Innis, Robert E. (1)
- Johach, Helmut (1)
- Mohanty, Jitendranath, 1928- (1)
- Montinari, Mazzino, 1928- (1)
- Nietzsche, Friedrich Wilhelm, 1844-1900 (1)
- Redeker, Martin (1)
- Rodi, Frithjof, 1930- (1)
- Scheler, Max, 1874-1928 (1)
- Schulte, Joachim (1)
- Venieri, Maria (1)
- Wright, G. H. von (Georg Henrik), 1916- (1)