“If success or failure of this planet and of human beings depended on how I am and what I do... HOW WOULD I BE? WHAT WOULD I DO?”

“I am a passenger on the spaceship Earth.”

“The minute you begin to do what you really want to do, it's really a different kind of life.”

“Human beings were given a left foot and a right foot to make a mistake first to the left, then to the right, left again and repeat.”

“Either war is obsolete or men are. ”

“I live on Earth at present, and I don’t know what I am. I know that I am not a category. I am not a thing — a noun. I seem to be a verb, an evolutionary process – an integral function of the universe.”

“When I am working on a problem, I never think about beauty........ but when I have finished, if the solution is not beautiful, I know it is wrong.”