Richard P. Feynman

“People often think I'm a faker, but I'm usually honest, in a certain way - in such a way that often nobody believes me!”

“We're always, by the way, in fundamental physics, always trying to investigate those things in which we don't understand the conclusions. After we've checked them enough, we're okay.”

“It is always good to know which ideas cannot be checked directly, but it is not necessary to remove them all. It is not true that we can pursue science completely by using only those concepts which are directly subject to experiment.”

“Because the theory of quantum mechanics could explain all of chemistry and the various properties of substances, it was a tremendous success. But still there was the problem of the interaction of light and matter.”

“The internal machinery of life, the chemistry of the parts, is something beautiful. And it turns out that all life is interconnected with all other life.”

“We do not know what the rules of the game are; all we are allowed to do is to watch the playing. Of course, if we watch long enough, we may eventually catch on to a few of the rules. The rules of the game are what we mean by fundamental physics.”