What brings enlightenment is experience, in the sad sense of this word—the pressure of hard facts and unintelligible troubles, making a man rub his eyes in his waking dream, and put two and two together. Enlightenment is cold water.
George Santayana (1863–1952), U.S. philosopher, essayist. Originally published in The Dial (1922). "Marginal Notes on Civilization in the United States," Santayana on America, Harcourt, Brace & World (1968).