642 Quotes by Richard P. Feynman

If you have any talent, or any occupation that delights you, do it, and do it to the hilt. Don’t ask why, or what difficulties you may get into.

To every man is given the key to the gates of heaven. The same key opens the gates of hell. And so it is with science.

Philosophers have said before that one of the fundamental requisites of science is that whenever you set up the same conditions, the same thing must happen. This is simply not true, it is not a fundamental condition of science.

You can recognize truth by its beauty and simplicity. When you get it right, it is obvious that it is right – at least if you have any experience – because usually what happens is that more comes out than goes in.

When I found out that Santa Claus wasn’t real, I wasn’t upset; rather, I was relieved that there was a much simpler phenomenon to explain how so many children all over the world got presents on the same night! The story had been getting pretty complicated – it was getting out of hand.

We scientists are clever – too clever – are you not satisfied? Is four square miles in one bomb not enough? Men are still thinking. Just tell us how big you want it!

There was an interesting early relationship between physics and biology in which biology helped physics in the discovery of the conservation of energy, which was first demonstrated by Mayer in connection with the amount of heat taken in and given out by a living creature.

It’s all generated, maybe, by the fact that the attitude of the populace is to try to find the answer instead of trying to find a man who has a way of getting at the answer.

I don’t feel frightened by not knowing things.