"I am the only guinea pig I have."

"Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment."

"Humanity is acquiring all the right technology for all the wrong reasons."

"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong."

"Humanity is acquiring all the right technology for all the wrong reasons."

"Dare to be naive."

"Think like a man of action, act like a man of thought."

"The budget is like a mythical bean bag. Congress votes mythicals beans into it, then reaches in and tries to pull real ones out."

"I never saw a wild thing sorry for itself. A bird will fall frozen dead from a bough without ever having felt sorry for itself."

"Any law which violates the inalienable rights of man is essentially unjust and tyrannical; it is not a law at all."

"I don't have a photograph, but you can have my footprints. They're upstairs in my socks."

"Although the most acute judges of the witches and even the witches themselves, were convinced of the guilt of witchery, the guilt nevertheless was non-existent. It is thus with all guilt."