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
There is nothing that living things do that cannot be understood from the point of view that they are made of atoms… — Richard P. Feynman Copy Share Image
We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress. — Richard P. Feynman Copy Share Image
The test of all knowledge is experiment. Experiment is the sole judge of scientific truth. — Richard P. Feynman Copy Share Image
Outside of their particular area of expertise scientists are just as dumb as the next person. — Richard P. Feynman Copy Share Image
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
Scientific knowledge is an enabling power to do either good or bad — but it does not carry instructions on how to… — Richard P. Feynman Copy Share Image
I think it's much more interesting to live not knowing than to have answers which might be wrong. — Richard P. Feynman Copy Share Image
We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But… — Richard P. Feynman Copy Share Image
The game I play is a very interesting one. It's imagination in a straightjacket, which is this: that it has to agree… — Richard P. Feynman Copy Share Image
This attitude of mind - this attitude of uncertainty - is vital to the scientist, and it is this attitude of mind… — Richard P. Feynman Copy Share Image
We decided that 'trivial' means 'proved'. So we joked with the mathematicians: We have a new theorem- that mathematicians can prove only… — Richard P. Feynman Copy Share Image
I think that when we know that we actually do live in uncertainty, then we ought to admit it; it is of… — Richard P. Feynman Copy Share Image
The whole question of imagination in science is often misunderstood by people in other disciplines. ... They overlook the fact that whatever… — Richard P. Feynman Copy Share Image
I don't feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which is the way… — Richard P. Feynman Copy Share Image
Our poets do not write about it; our artists do not try to portray this remarkable thing. I don't know why. Is… — Richard P. Feynman Copy Share Image
All things are made of atoms-little particles that move around in perpetual motion, attracting each other when they are a little distance… — Richard P. Feynman Copy Share Image
“I've always been rather very one-sided about the science, and when I was younger, I concentrated almost all my effort on it.… — Richard P. Feynman Copy Share Image
What is necessary for 'the very existence of science,' and what the characteristics of nature are, are not to be determined by… — Richard P. Feynman Copy Share Image
We are very lucky to be living in an age in which we are still making discoveries. It is like the discovery… — 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
One of the ways of stopping science would be only to do experiments in the region where you know the law. But… — Richard P. Feynman Copy Share Image
No government has the right to decide on the truth of scientific principles, nor to prescribe in any way the character of… — Richard P. Feynman Copy Share Image
All things are made of atoms - little particles that move around in perpetual motion, attracting each other when they are a… — Richard P. Feynman Copy Share Image
The theoretical broadening which comes from having many humanities subjects on the campus is offset by the general dopiness of the people… — Richard P. Feynman Copy Share Image
To decide upon the answer is not scientific. In order to make progress, one must leave the door to the unknown ajar… — Richard P. Feynman Copy Share Image
The ideas associated with the problems of the development of science, as far as I can see by looking around me, are… — Richard P. Feynman Copy Share Image
There is no harm in doubt and skepticism, for it is through these that new discoveries are made. — Richard P. Feynman Copy Share Image
Science is like sex: sometimes something useful comes out, but that is not the reason we are doing it — Richard P. Feynman Copy Share Image
If there is something very slightly wrong in our definition of the theories, then the full mathematical rigor may convert these errors… — Richard P. Feynman Copy Share Image
“I have no responsibility to live up to what others expect of me. That's their mistake, not my failing.” — Richard P. Feynman Copy Share Image
“I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to… — Richard P. Feynman Copy Share Image
The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment. — 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
It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived… — Richard P. Feynman Copy Share Image
I believe that a scientist looking at nonscientific problems is just as dumb as the next guy. — Richard P. Feynman Copy Share Image
If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives. — 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
