"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."
"I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."
"No, this trick won't work...How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?"
"The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: his eyes are closed."
-- Old Man Albert
The following was on a sign hanging in his office @ Princeton:
"Not everything that counts can be counted, and not everything that can be counted counts."