If you hold a cat by the tail you learn things you cannot learn any other way.

Man is the Reasoning Animal. Such is the claim. I think it is open to dispute. Indeed, my experiments have proven to me that he is the Unreasoning Animal... In truth, man is incurably foolish. Simple things which the other animals easily learn, he is incapable of learning. Among my experiments was this. In an hour I taught a cat and a dog to be friends. I put them in a cage. In another hour I taught them to be friends with a rabbit. In the course of two days I was able to add a fox, a goose, a squirrel and some doves. Finally a monkey. They lived together in peace; even affectionately.

I don't mind what the opposition say of me so long as they don't tell the truth about me. But when they descend to telling the truth about me I consider that this is taking an unfair advantage.

The only certainties in life are death and taxes.

Until I came to New Mexico, I never realized how much beauty water adds to a river.

Whoever has lived long enough to find out what life is, knows how deep a debt of gratitude we owe to Adam, the first great benefactor of our race. He brought death into the world.

Good breeding consists in concealing how much we think of ourselves and how little we think of the other person.