"I was able to solve this problem because I don't have a computer. I know what I am doing every step, and the steps go slowly enough that I can think."

"You can't have a good idea unless you have a lot of ideas."

"I have always liked working in some directions that people say, 'Well, that's ridiculous.'"

"I believe that there is a way to make the world better, and that we have a responsibility to find it."

"Well, I thought, that's nice of the old guy to say that, but I'm a little skeptical myself. And as the years went by, I thought, I don't do the sort of work for which Nobel Prizes are given."