"I object to having my fun regulated."

"I bet you anything that if you asked a hundred physicists, they would all say that the most beautiful equation in physics is Maxwell's equations."

"Scientific knowledge is a body of statements of varying degrees of certainty—some most unsure, some nearly sure, but none absolutely certain."

"I would rather have questions that can't be answered than answers that can't be questioned."

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