IN "MOSES THE EGYPTIAN"—THE CENTERPIECE OF _RIGORISM OF TRUTH_, THE GERMAN PHILOSOPHER HANS BLUMENBERG ADDRESSES TWO DEFINING FIGURES IN THE INTELLECTUAL HISTORY OF THE TWENTIETH CENTURY: SIGMUND FREUD AND HANNAH ARENDT. Unpublished during his lifetime, this essay analyzes Freud's _Moses and Monotheism_ (1939) and Arendt's _Eichmann in Jerusalem_ (1963), and discovers in both a principled rigidity that turns into recklessness because it is blind to the politics of the unknown. Offering striking insights into the importance of myth in politics and the extent to which truth can be tolerated in adversity, the essay also provides one of the few instances where Blumenberg reveals his thinking about Judaism and Zionism. _Rigorism of Truth_ also includes commentaries by Ahlrich Meyer that give a fuller understanding of the philosopher's engagement with Freud, Arendt, and the Eichmann trial, as well as situating these reflections in the broader context of Blumenberg's life and thought.