Rosenzweig’s Büchlein vom gesunden und kranken Menschenverstand as a Prolegomena Yehoyada Amir Forward: In July 1921, a few weeks after the publication of The Star of Redemption, Rosenzweig completed another text, Das Büchlein vom Gesunden und Kranken Menschenverstand [The Little Book about the Healthy and Sick Human Reason]. 1 This was not an independent work, marking a new phase or direction in Rosenzweig’s philosophy, but rather a guide [Einführung], or prolegomena, to the Star. 2 As such, its function was to ease the reader’s way to the Star and provide this complicate, extremely difficult work with better accessibility. From the outset, Rosenzweig was uncertain whether the text could indeed fulfill this hope; he feared that it would ruin his reputation and alienate potential readers. 3 Though the Büchlein was written at the 1 Franz Rosenzweig, Das Büchlein vom Gesunden und Kranken Menschenverstand, ed. Nahum N. Glatzer, Düsseldorf: Joseph Melzer Verlag, 1964; Franz Rosenzweig, Understanding the Sick and the Healthy: A View of World, Man, and God, tr. and ed. by Nahum N. Glatzer, New York: Noonday Press, 1953 [Later referred to as BGK; USH] 2 BGK, 24-25; USH, 24 3 GS 1.2, 718