"Philosophy in a Time of Terror: Dialogues with Jurgen Habermas and Jacques Derrida". Book by Giovanna Borradori, Jacques Derrida, and Jürgen Habermas, p. 34, 2003.
Address at the Sorbonne, Paris, 23 Apr. 1910. Richard M. Nixon quoted this passage in his address to the nation announcing his decision to resign the presidency, 8 Aug. 1974. See Theodore Roosevelt 1; Theodore Roosevelt 2; Theodore Roosevelt 5