"The easiest way to fool yourself is to believe something because you want it to be true."

"It doesn't seem to me that this fantastically marvelous universe, this tremendous range of time and space and different kinds of animals, and all the different planets, and all these atoms with all th…"

"Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply e…"

"I don't like to be told what to do."

"You see my physics students don't understand it... That is because I don't understand it. Nobody does."