"The fundamental problem is that the world is not simple. It is complex, and we are trying to understand it with simple ideas."

"The purpose of science is to make sense of the world, not to explain it away."

"Young man, if I could remember the names of these [muons, pions, etc.] particles, I would have been a botanist."

"Never underestimate the joy people derive from hearing something they already know."

"The main point is to be honest with yourself, and to admit when you are wrong."