"My business is to teach my aspirations to confirm themselves to fact, not to try and make facts harmonize with my aspirations."

"It is because the body is a machine that education is possible. Education is the formation of habits, a superinducing of an artificial organization upon the natural organization of the body."

"Patience and tenacity are worth more than twice their weight of cleverness."

"Of moral purpose I see no trace in Nature. That is an article of exclusively human manufacture and very much to our credit."

"I'm always interested in what you can do with technology that people haven't thought of doing yet."

"Many art-worlders have an if-you-say-so approach to art: Everyone is so scared of missing out on the next hot artist that it's never clear whether people are liking work because they like it or because other people do. Everyone is keeping up with the Joneses, and there are more Joneses than ever."

"As long as I live, I will never forget that day 21 years ago when I raised my hand and took the oath of citizenship. Do you know how proud I was? I was so proud that I walked around with an American flag around my shoulders all day long."

"We can and must move U.S. politics forward by means of committed participation."