 Susman’s review of Franz Rosenzweig’s Star of Redemption (1921) in Der Jude, Weimar Germany’s premier Jewish literary journal, which was published by Buber from 1916–1928, was one of the earliest critical recognitions of the significance of Rosenzweig’s philosophically critical turn, or what he called “new thinking”. Rosenzweig credited Susman with having understood his work like nobody else. In a letter to her, responding to her review, he wrote: