Man is born as a freak of nature, being within nature and yet transcending it. He has to find principles of action and decision-making which replace the principles of instincts. He has to have a frame of orientation which permits him to organize a consistent picture of the world as a condition for consistent actions. He has to fight not only against the dangers of dying, starving, and being hurt, but also against another danger which is specifically human: that of becoming insane. In other words, he has to protect himself not only against the danger of losing his life but also against the danger of losing his mind.

The Revolution of Hope: Toward a Humanized Technology (1968), p. 61.