"I have had a very happy life. I have done many things that I wanted to do."

"A man provided with paper, pencil, and rubber, and subject to strict discipline, is in effect a universal machine."

"The universe is full of mysteries, and it is our task to unravel them."

"The most beautiful thing we can experience is the mysterious."

"We are not interested in the fact that the machine can do well, but in the fact that it can do badly."