This book compares the philosophies of Rosenzweig and Heidegger to elucidate their diverging ethical paths and to indicate philosophical consequences. Two German philosophers working during the Weimar Republic in Germany, between the two World Wars, produced seminal texts that continue to resonate almost 100 years later. Franz Rosenzweig and Martin Heidegger, a Jewish thinker and a philosopher who at one time was studying to become a Roman Catholic Priest, each in their own, particular way include in their writings powerful philosophies of art that, if approached phenomenologically and ethically, provide keys to understanding their radically divergent trajectories, both biographically and for their philosophical heritage. Simon provides a close reading of some of their essential texts - The Star of Redemption for Rosenzweig and Being and Time and The Origin of the Work of Art for Heidegger - in order to draw attention to how their philosophies of art can be understood to provide significant ethical directives.