642 Quotes by Richard P. Feynman

There were several possible solutions of the difficulty of classical electrodynamics, any one of which might serve as a good starting point to the solution of the difficulties of quantum electrodynamics.

[John] von Neumann gave me an interesting idea: that you don't have to be responsible for the world that you're in. So I have developed a very powerful sense of social irresponsibility as a result of von Neumann's advice. It's made me a very happy man ever since. But it was von Neumann who put the seed in that grew into my active irresponsibility!

But logic is not all, one needs one's heart to follow an idea.

The basis of action on love, the brotherhood of all men, the value of the individual... the humility of the spirit.

If the professors of English will complain to me that the students who come to the universities, after all those years of study, still cannot spell 'friend,' I say to them that something's the matter with the way you spell friend.

Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

I love to think. I once considered taking drugs as an attempt to better understand an altered state of mind; however, I decided not to. I didn't want to chance ruining the machine.

We are lucky to live in an age in which we are still making discoveries.

When you are thinking about something you don't understand you have a terrible, uncomfortable feeling called confusion. The confusion is, because we are all some kind of apes that are kind of stupid trying to figure out how to put two sticks together to reach the banana, and we can't quite make it. So I always feel stupid. Once in a while, I put the two sticks together, and I reach the banana.