One never goes so far as when one doesn't know
where one is going.

Von Goethe, Johann Wolfgang. "Iphigenia in Tauris." Goethe: The Collected Works: Verse Plays and Epic, edited by Cyrus Hamlin and Frank Ryder. Vol. 8, Princeton University Press, 1995, act 4, sc. 4.

Jefferson, Thomas. "Samuel Kercheval, July 12, 1816." The Life and Selected Writings of Thomas Jefferson: Including the Autobiography, The Declaration of Independence & His Public and Private Letters, edited by Adrienne Koch and William Peden. Modern Library, 1998.

Nietzsche, Frederick. Twilight of the Idols and the Anti-Christ: or How to Philosophize with a Hammer, translated by Walter Kaufman and R. J. Hollingdale. Penguin Classics, 1990.