The first principle is that you must not fool yourself and y... - Richard Feynman

"I learned very early the difference between knowing the name of something and knowing something."

"[Quantum mechanics] describes nature as absurd from the point of view of common sense. And yet it fully agrees with experiment. So I hope you can accept nature as She is - absurd."

"We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on."

"Physics isn't the most important thing. Love is."

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