- Kant, Immanuel, 1724-1804. Werke : Akademie Textausgabe. 1977 (9)
- Hegel, Georg Wilhelm Friedrich, 1770-1831 (3)
- James, William, 1842-1910 (2)
- Russell, Bertrand, 1872-1970 (2)
- Bunge, Mario Augusto (1)
- Eliot, T. S. (Thomas Stearns), 1888-1965 (1)
- Frohmann, Bernd (1)
- Gray, J. Glenn (Jesse Glenn), 1913-1977 (1)
- Griffin, Nicholas (1)
- Hoffmeister, Johannes (1)
- Hollingdale, R. J. (1)
- Hulme, T. E. (Thomas Ernest), 1883-1917 (1)
- Lasson, Georg, 1862-1932 (1)
- Lewis, Albert C. (1)
- Marinoff, Lou (1)
- Nietzsche, Friedrich Wilhelm, 1844-1900 (1)
- Pieper, Josef, 1904- (1)
- Pieper, Josef, 1904- The philosophical act (1)
- Read, Herbert Edward, Sir, 1893-1968 (1)
- Slater, John G. (John Greer) (1)
- Stratton, William G. (1)