This volume brings together Rosenzweig's central essays on theology and philosophy, including two works available for the first time in English: the conclusion to Rosenzweig's book Hegel and the State, and Rosenzweig's famous letter to Rudolph Ehrenberg known as the Urzelle of the Star of Redemption, an essential work for understanding Rosenzweig, Weimar theology and philosophy, and German idealism and the existential reaction of the period. Additional selections are presented in new or revised translations. Introduction and notes by Franks and Morgan set Rosenzweig's works in context and illuminate his role as one of the key thinkers of the period.