If men as individuals surrender to the call of their elementary instincts, avoiding pain and seeking satisfaction only for their own selves, the result for them all taken together must be a state of insecurity, of fear, and of promiscuous misery.

When I was still a rather precocious young man, I already realized most vividly the futility of the hopes and aspirations that most men pursue throughout their lives.

Every day, man is making bigger and better fool-proof things, and every day, nature is making bigger and better fools. So far, I think nature is winning.

All these primary impulses, not easily described in words, are the springs of man's actions.

Subtle is the Lord. Malicious, He is not.

Creative energy is more critical than learning.

Knowledge is dead; the school, however, serves the living.