Human Life in Motion presents for the first time the previously unpublished transcripts of the seminars on Aristotle Martin Heidegger gave in the 1920s. These transcripts reveal much about the evolution of his thought during that time. Detailed student transcripts for these seminars appear among the papers of one of Heidegger's students, Helene Weiss, held today in the Special Collections Department of Stanford University. Analyzing and organizing hundreds of pages of these transcripts written by different students, Francisco Gonzalez brilliantly reconstructs the original seminars. He...