# Quote — Richard P. Feynman, Surely You're Joking Mr Feynman

> On the contrary, it's because somebody knows something about it that we can't talk about physics. It's the things that nobody knows anything about that we can discuss. We can talk about the weather; we can talk about social problems; we can talk about psychology; we can talk about international finance — gold transfers we can't talk about, because those are understood — so it's the subject that nobody knows anything about that we can all talk about!

- Author: [Richard P. Feynman](https://www.leafyquotes.com/richard-p-feynman.md)
- Book: [Surely You're Joking Mr Feynman](https://www.leafyquotes.com/richard-p-feynman/surely-youre-joking-mr-feynman.md)
- Page: 310
- Source: [Wikiquote](https://en.wikiquote.org/wiki/Richard_Feynman#Surely_You're_Joking,_Mr._Feynman!_(1985)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/richard-p-feynman/surely-youre-joking-mr-feynman/on-the-contrary

## More from this book

> I'll never make that mistake again, reading the experts' opinions. Of course, you only live one life, and you make all your mistakes, and learn what not to do, and that's the end of you.

p. 255 — [Quote page](https://www.leafyquotes.com/richard-p-feynman/surely-youre-joking-mr-feynman/ill-never-make.md)

> Since then I never pay attention to anything by "experts". I calculate everything myself.

p. 255 — [Quote page](https://www.leafyquotes.com/richard-p-feynman/surely-youre-joking-mr-feynman/since-then-i-never.md)

> [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!

p. 132 — [Quote page](https://www.leafyquotes.com/richard-p-feynman/surely-youre-joking-mr-feynman/john-von-neumann.md)