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- Schopenhauer, Arthur, 1788-1860 (2)
- Alexander, Patrick Proctor, 1823-1886 (1)
- Bramhall, John, 1594-1663 (1)
- Chappell, V. C. (Vere Claiborne), 1930- (1)
- Edwards, Jonathan, 1703-1758 (1)
- Erasmus, Desiderius, 1466-1536 (1)
- Freeman, Anthony, 1946- (1)
- Fromm, Erich, 1900-1980 (1)
- Heidegger, Martin, 1889-1976 (1)
- Hobbes, Thomas, 1588-1679 (1)
- Kall, Hans (1)
- Kane, Robert, 1938- (1)
- Keller, Wilhelm, 1909- (1)
- Kenny, Anthony John Patrick (1)
- Libet, Benjamin (1)
- Luther, Martin, 1483-1546 (1)
- McGuinness, Brian (1)
- Ramsey, Paul, 1913- (1)
- Ricœur, Paul, 1913- (1)
- Rupp, E. Gordon (Ernest Gordon), 1910- (1)
- Schlick, Moritz, 1882-1936 (1)
- Schmidt-Sauerhöfer, Paul, 1937- (1)
- Schulte, Joachim (1)
- Schächter, Josef (1)
- Sutherland, Keith (1)
- Thorp, John (1)
- Tietjen, Hartmut (1)
- Waismann, Friedrich (1)
- Wallace, R. Jay (1)
- Watson, Philip S. (Philip Saville), 1909- (1)