Compositions   1893: The Rock 1895: Symphony No 1 1896: Moments Musicaux for Piano 1901: Piano Concerto No 1 1901: Piano Concerto No 2 1907: Symphony No 2 1907: Piano Concerto No 3 1911: Six Études-Tableaux for Piano 1915: Vesper Mass 1934: Rhapsody on a Theme by Paganini 1936: Symphony No 3	Philosophy 1883: Nietzche: Thus Spake Zarathustra       1900: Russell: Principia Mathematica           1929: Heidegger: What is Philosophy?   1943: Sartre: Being and Nothingness