"Everything comes to him who hustles while he waits."

"Opportunity is missed by most people because it is dressed in overalls and looks like work."

"Faith, as well intentioned as it may be, must be built on facts, not fiction--faith in fiction is a damnable false hope."

"I have not failed. I've just found 10,000 ways that won't work."

"Many of life's failures are those who didn't know how close they were to success when they gave up."

"To invent, you need a good imagination and a pile of junk."

"I am somehow less interested in the weight and convolutions of Einstein's brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops."

"That's one small step for a man, one giant leap for mankind."

"I never knew an early-rising, hard-working, prudent man, careful of his earnings, and strictly honest who complained of bad luck."

"If everyone is thinking alike, then someone isn't thinking."

"Are you unselfish? That is the question. If you are, you will be perfect without reading a single religious book, without going into a single church or temple."

"I have no spur to prick the sides of my intent, but only vaulting ambition, which o'erleaps itself, and falls on the other."