A scientist is never certain. ... We absolutely must leave room for doubt or there is no progress and there is no learning. — Richard P. Feynman Copy Share Image
Precise language is not the problem. Clear language is the problem. — Richard P. Feynman Copy Share Image
I don't know what's the matter with people: they don't learn by understanding, they learn by some other way — by rote… — Richard P. Feynman Copy Share Image
There is no learning without having to pose a question. And a question requires doubt. — Richard P. Feynman Copy Share Image
So, ultimately, in order to understand nature it may be necessary to have a deeper understanding of mathematical relationships. But the real… — Richard P. Feynman Copy Share Image
The real problem in speech is not precise language. The problem is clear language. — Richard P. Feynman Copy Share Image
... it is impossible to explain honestly the beauties of the laws of nature in a way that people can feel, without… — Richard P. Feynman Copy Share Image
“They didn't put two and two together. They didn't even know what they knew. I don't know what's the matter with people,… — Richard P. Feynman Copy Share Image
It's the way I study - to understand something by trying to work it out or, in other words, to understand something… — Richard P. Feynman Copy Share Image
We absolutely must leave room for doubt or there is no progress and no learning. There is no learning without having to… — 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