This volume reconstructs Martin Heidegger's lecture course at the University of Marburg in the winter semester of 1924-25, which was devoted to an interpretation of Plato and Aristotle. Published for the first time in German in 1992 as volume 19 of Heidegger's Collected Works, it is a major text not only because of its intrinsic importance as an interpretation of the Greek thinkers, but also because of its close, complementary relationship to...