"Life is like eating artichokes, you have to go through so much to get so little."

"When scientifically investigating the natural world, the only thing worse than a blind believer is a seeing denier."

"I always have a quotation for everything -- it saves original thinking."

"If I'd asked people what they wanted, they would have said a faster horse."

"After the laws of physics, everything else is opinion."

"Human beings are perhaps never more frightening than when they are convinced beyond doubt that they are right."