Compositions   1899: Verklärte Nacht 1900: Gurrelieder 1907: String Quartet No 2 1909: Three Piano Pieces 1909: Erwartung 1912: Pierrot Lunaire 1927: String Quartet No 3 1932: Moses und Aaron 1936: Violin Concerto	Philosophy 1883: Nietzche: Thus Spake Zarathustra   1900: Russell: Principia Mathematica         1929: Heidegger: What is Philosophy?     1943: Sartre: Being and Nothingness