The present situation in physics is as if we know chess, but we don't know one or two rules.
Richard P. FeynmanIf I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
Richard P. FeynmanFirst you guess. Don't laugh, this is the most important step. Then you compute the consequences. Compare the consequences to experience. If it disagrees with experience, the guess is wrong. In that simple statement is the key to science. It doesn't matter how beautiful your guess is or how smart you are or what your name is. If it disagrees with experience, it's wrong. That's all there is to it.
Richard P. FeynmanNo man is rich who is unsatisfied, but who wants nothing possess his heart's desire.
Richard P. Feynman