Abstract

This volume contains the text of a lecture course Heidegger presented in Marburg in the winter semester of 1924/25, just a year before completing his work on the manuscript for Being and Time. A lengthy introductory section examines the concept of truth in Aristotle's Nicomachean Ethics and Metaphysics. The "Main Section" presents a detailed commentary on the Greek text of Plato's Sophist. Part 1 deals with the various attempts made at the beginning of the dialogue to define "the factical existence of the sophist." Part 2 is devoted to the ontological discussion which arises out of these attempts.