“Physics is to math what sex is to masturbation.”

“In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth.”

“Physics is like sex: sure, it may give some practical results, but that's not why we do it.”

“There is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics.”

“We can't define anything precisely. If we attempt to, we get into the paralysis of thought that comes to philosophers... one saying to the other: you don't know what you are talking about! The second one says: what do you mean by talking? What do you mean by you? What do you mean by know?”

“There is no authority who decides what is a good idea.”

“Science is what we have learned about how to keep from fooling ourselves.”