Science is what we have learned about how to keep from fooli... - Richard Feynman

"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."

"If you thought that science was certain - well, that is just an error on your part."

"The first principle is that you must not fool yourself and you are the easiest person to fool."

"You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts."

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