"There is nobody as enslaved as the fanatic, the person in whom one impulse, one value, has assumed ascendancy over all others."

"The vision of a champion is someone who is bent over, drenched in sweat, at the point of exhaustion when no one else is looking."

"Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction and skillful execution; it represents the wise choice of many alternatives."

"I don't want people who want to dance. I want people who have to dance."

"Happy the man who, like Ulysses, has made a fine voyage, or has won the Golden Fleece, and then returns, experienced and knowledgeable, to spend the rest of his life among his family!"

"I could have gone on flying through space forever."

"There is no greater joy than of feeling oneself a creator. The triumph of life is expressed by creation."

"I almost think it is the ultimate destiny of science to exterminate the human race."

"The world changes, and all that once was strong now proves unsure."

"Experience is the name everyone gives to their mistakes."

"Creationist critics often charge that evolution cannot be tested, and therefore cannot be viewed as a properly scientific subject at all. This claim is rhetorical nonsense."

"Life's too short for chess."