"Most things worth having require some sacrifice, usually more than you expect."

"A technique succeeds in mathematical physics, not by a clever trick, or a happy accident, but because it expresses some aspect of a physical truth."

"To me YES, AND means don't be afraid to contribute. Always make sure you're adding something to the discussion. Your initiations are worthwhile."

"A word to the wise is infuriating."

"My mother said to me, if you go into the military, you will become a general. If you go into the clergy, you will become Pope. Instead, I became an artist, and I am Piccaso."

"Erase fancy; curb impulse; quench desire; let sovereign reason have the mastery."

"Science when well-digested is nothing but good sense and reason."

"However we may receive blows, and however knocked about we may be, the Soul is there and is never injured. We are that Infinite."

"I am as bad as the worst, but, thank God, I am as good as the best."

"This day before dawn I ascended a hill and looked at the crowded heaven."

"Thank God men cannot as yet fly and lay waste the sky as well as the earth!"

"I would rather try to persuade a man to go along, because once I have persuaded him he will stick. If I scare him, he will stay just as long as he is scared, and then he is gone."