"Racism, pollution and the rest of it are themselves very close to extinction."

"I think I am a verb."

"Sometimes I think we're alone. Sometimes I think we're not. In either case, the thought is staggering."

"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong."

"Dare to be naive."

"Now there is one outstandingly important fact regarding Spaceship Earth, and that is that no instruction book came with it."

"To the soul, there is hardly anything more healing than friendship."

"I find television very educational. The minute somebody turns it on, I go to the library and read a good book."

"That's what I consider true generosity. You give your all, and yet you always feel as if it costs you nothing."

"This life is worth living, we can say, since it is what we make it."

"Asking a working writer what he thinks about critics is like asking a lamp-post how it feels about dogs."

"It's a control freak thing. I wouldn't let you understand."