Physics is like sex: sure, it may give some practical results, but that's not why we do it. — Richard P. Feynman Copy Share Image
I think a power to do something is of value. Whether the result is a good thing or a bad thing depends… — Richard P. Feynman Copy Share Image
A philosopher once said, 'It is necessary for the very existence of science that the same conditions always produce the same results.'… — Richard P. Feynman Copy Share Image
When a scientist doesn't know the answer to a problem, he is ignorant. When he has a hunch as to what the… — Richard P. Feynman Copy Share Image
When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do… — Richard P. Feynman Copy Share Image
If science is to progress, what we need is the ability to experiment, honesty in reporting results—the results must be reported without… — Richard P. Feynman Copy Share Image
Listen, I mean that from my knowledge of the world that I see around me, I think that it is much more… — Richard P. Feynman Copy Share Image
John von Neumann gave me an interesting idea: that you don't have to be responsible for the world that you're in. So… — Richard P. Feynman Copy Share Image
If you're doing an experiment, you should report everything that you think might make it invalid - not only what you think… — Richard P. Feynman Copy Share Image
Another of the qualities of science is that it teaches the value of rational thought, as well as the importance of freedom… — Richard P. Feynman Copy Share Image
What is the fundamental hypothesis of science, the fundamental philosophy? We stated it in the first chapter: the sole test of the… — Richard P. Feynman Copy Share Image
When a scientist doesn't know the answer to a problem, he is ignorant. When he has a hunch as to what the… — Richard P. Feynman Copy Share Image
The difficulty really is psychological and exists in the perpetual torment that results from your saying to yourself, "But how can it… — Richard P. Feynman Copy Share Image
“Philosophers have said before that one of the fundamental requisites of science is that whenever you set up the same conditions, the same thing… — Richard P. Feynman Copy Share Image
My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous… — Richard P. Feynman Copy Share Image
Trying to understand the way nature works involves a most terrible test of human reasoning ability. It involves subtle trickery, beautiful tightropes of logic… — Richard P. Feynman Copy Share Image
Mathematics is a language plus reasoning; it is like a language plus logic. Mathematics is a tool for reasoning. — Richard P. Feynman Copy Share Image
It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions. — Richard P. Feynman Copy Share Image
“There was a Princess Somebody of Denmark sitting at a table with a number of people around her, and I saw an empty chair… — Richard P. Feynman Copy Share Image
All the time you're saying to yourself, 'I could do that, but I won't,'--which is just another way of saying that you can't. — Richard P. Feynman Copy Share Image
“There's a big difference between knowing the name of something and knowing something.” — Richard P. Feynman Copy Share Image
The fact that you are not sure means that it is possible that there is another way someday. — Richard P. Feynman Copy Share Image
One cannot understand... the universality of laws of nature, the relationship of things, without an understanding of mathematics. There is no other way to… — Richard P. Feynman Copy Share Image
