In these lectures, delivered in 1933-1934 while he was Rector of the University of Freiburg and an active supporter of the National Socialist regime, Martin Heidegger addresses the history of metaphysics and the notion of truth from Heraclitus to Hegel. First published in German in 2001, these two lecture courses offer a sustained encounter with Heidegger's thinking during a period when he attempted to give expression to his highest ambitions for...