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

"Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment."

"God is a verb."

"Humanity is acquiring all the right technology for all the wrong reasons."

"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."

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

"No beast is more savage than man when possessed with power answerable to his rage."

"Righteousness exalteth a nation."

"Intuition comes very close to clairvoyance; it appears to be the extrasensory perception of reality."

"The most beautiful thing we can experience is the mysterious. It is the source of all art and science."

"Do it now. It is not safe to leave a generous feeling to the cooling influences of the world."

"Gathering her brows like gathering storm, Nursing her wrath, to keep it warm"