“Centennial celebrations for the political theorist Hannah Arendt (1906–1975) are springing up from Lucerne to Lima and Sydney to Seoul. Forthcoming gatherings in Germany, Paris,and New York will successively retrace the geographical arc of this prodigious Jewish émigré scholar’s flight across Europe to America. Arendt probed the roots of totalitarianism, examined reasons for revolution, and showed how evil could wear an ordinary face.”