"The world is full of magic things, patiently waiting for our senses to grow sharper."

"I am an optimist, because I believe that man is capable of solving his problems."

"Don't ever do a calculation without knowing the answer."

"I would rather be ignorant and learn, than be learned and not know."

"I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant and with five I can make him wiggle his trunk.'"