1225?-1274 1724-1804 1861-1947 1889-1976 1897-2000 191 192 1925-1995 1946- 1966- 810 aesthetics alfrednorth bill biography charles christianlawyers clinton deleuze education environmentalethics environmentalresponsibility ethics gilles hartshorne heidegger immanuel james johnw jones kant martin metaphysics modern paula philosophy processphilosophy processtheology religions thomas unitedstates