It is not unscientific to make a guess, although many people who are not in science think it is. — Richard P. Feynman Copy Share Image
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. — Richard P. Feynman Copy Share Image
Before I was born, my father told my mother, 'If it's a boy, he's going to be a scientist.' — Richard P. Feynman Copy Share Image
Science alone of all the subjects contains within itself the lesson of the danger of belief in the infallibility of the greatest… — Richard P. Feynman Copy Share Image
To guess what to keep and what to throw away takes considerable skill. Actually it is probably merely a matter of luck,… — Richard P. Feynman Copy Share Image
There are all kinds of interesting questions that come from a knowledge of science, which only adds to the excitement and mystery… — Richard P. Feynman Copy Share Image
Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but… — Richard P. Feynman Copy Share Image
“I think we should teach them [the people] wonders and that the purpose of knowledge is to appreciate wonders even more.” — Richard P. Feynman Copy Share Image
It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the… — Richard P. Feynman Copy Share Image
This is the key of modern science and is the beginning of the true understanding of nature. This idea. That to look… — Richard P. Feynman Copy Share Image
The situation in the sciences is this: A concept or an idea which cannot be measured or cannot be referred directly to… — Richard P. Feynman Copy Share Image
If you keep proving stuff that others have done, getting confidence, increasing the complexities of your solutions - for the fun of… — Richard P. Feynman Copy Share Image
I do believe that there is a conflict between science and religion ... the spirit or attitude toward the facts is different… — 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… — 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
Although it is uncertain, it is necessary to make science useful. Science is only useful if it tells you about some experiment… — Richard P. Feynman Copy Share Image
“[Doubt] is not a new idea; this is the idea of the age of reason. This is the philosophy that guided the… — 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
It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance, the great progress which… — Richard P. Feynman Copy Share Image
Poets say science takes away from the beauty of stars-mere globs of gas atoms. Nothing is "mere". I too see the stars… — Richard P. Feynman Copy Share Image
'Conservation' (the conservation law) means this ... that there is a number, which you can calculate, at one moment-and as nature undergoes… — Richard P. Feynman Copy Share Image
We've learned from experience that the truth will come out. Other experimenters will repeat your experiment and find out whether you were… — Richard P. Feynman Copy Share Image
“Are you looking for the ultimate laws of physics?" No, I'm not. I'm just looking to find out more about the world… — Richard P. Feynman Copy Share Image
“psychoanalysis is not a science: it is at best a medical process, and perhaps even more like witch-doctoring.” — Richard P. Feynman Copy Share Image
But the real glory of science is that we can find a way of thinking such that the law is evident. — Richard P. Feynman Copy Share Image
Science is a process for learning about nature in which competing ideas about how the world works are measured against observations. — Richard P. Feynman Copy Share Image
I learned very early the difference between knowing the name of something and knowing something. — Richard P. Feynman Copy Share Image
It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's… — 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 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
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
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
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
The test of all knowledge is experiment. Experiment is the sole judge of scientific truth. — 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
“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
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
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
Mathematics is a language plus reasoning; it is like a language plus logic. Mathematics is a tool for reasoning. — Richard P. Feynman Copy Share
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
“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
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
“There's a big difference between knowing the name of something and knowing something.” — Richard P. Feynman Copy Share
The fact that you are not sure means that it is possible that there is another way someday. — Richard P. Feynman Copy Share
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
Mathematics is not just a language. Mathematics is a language plus reasoning. — Richard P. Feynman Copy Share
A poet once said, "The whole universe is in a glass of wine." We will probably never know in what sense he meant that,… — Richard P. Feynman Copy Share
I was a very shy character, always feeling uncomfortable because everybody was stronger than I, and always afraid I would look like a sissy.… — Richard P. Feynman Copy Share