Compositions   1813: L'Italiana in Algeri 1813: Tancredi 1815: Il Barbieri di Siviglia 1817: La Cenerentola 1823: Semiramide 1829: Guglielmo Tell 1841: Stabat Mater	Philosophy 1807: Hegel: Phenomenology of Spirit           1836: Schopenhauer: On the Will in Nature   1843: Kierkegaard: Either-Or