If I had a Boy Scout I could make a fire by rubbing his hind legs together.

Anyone who cannot cope with mathematics is not fully human. At best, he is a tolerable subhuman who has learned to wear his shoes, bathe, and not make messes in the house.

The truth of a proposition has nothing to do with its credibility. And vice versa.

One might define adulthood as the age at which a person learns that he must die ...and accepts his sentence undismayed.

How anybody expects a man to stay in business with every two-bit wowser in the country claiming a veto over what we can say and can't say and what we can show and what we can't show - it's enough to make you throw up. The whole principle is wrong; it's like demanding that grown men live on skim milk because the baby can't eat steak.

He never gave up his search for the Door into Summer.

Expertise in one field does not carry over into other fields. But experts often think so. The narrower their field of knowledge the more likely they are to think so.