Basic Concepts of Ancient Philosophy presents a lecture course given byMartin Heidegger in 1926 at the University of Marburg. First published in German asvolume 22 of the collected works, the book provides Heidegger's most systematichistory of Ancient philosophy beginning with Thales and ending with Aristotle. Inthis lecture, which coincides with the completion of his most important work, Beingand Time, Heidegger is working out a way to sharply differentiate between beings andBeing. Richard Rojcewicz's clear and accurate translation offers English-speakingreaders valuable insight into Heidegger's views on Ancient thought and concepts suchas principle, cause, nature, unity, multiplicity, Logos, truth, science, soul, category, and motion.