People often think I'm a faker, but I'm usually honest, in a certain way--in such a way that often nobody believes me! - Richard Feynman
First of all there is matter—and, remarkably enough, all matter is the same. The matter of which the stars are made is known to be the same as the matter on the earth...The same kinds of atoms appear to be in living creatures as in non-living creatures. - Richard Feynman
Philosophy of science is about as useful to scientists as ornithology is to birds. - Richard Feynman
It's because somebody knows something about it that we can't talk about physics. It's the things that nobody knows anything about we can discuss. - Richard Feynman
Nature has a great simplicity and therefore a great beauty. - Richard Feynman
We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress. - Richard Feynman
Science is a way of trying not to fool yourself. The principle is that you must not fool yourself, and you are the easiest person to fool. - Richard Feynman
There are 10^11 stars in the galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the national deficit! We used to call them astronomical numbers. Now we should call them economical numbers. - Richard Feynman
We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on. - Richard Feynman
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible. - Richard Feynman
The first principle is that you must not fool yourself and you are the easiest person to fool. - Richard Feynman
I was born not knowing and have only had a little time to change that here and there. - Richard Feynman
The worthwhile problems are the ones you can really solve or help solve, the ones you can really contribute something to. - Richard Feynman
No problem is too small or too trivial if we can really do something about it. - Richard Feynman
I don't know what's the matter with people: they don't learn by understanding, they learn by some other way — by rote or something. Their knowledge is so fragile! - Richard Feynman
Physics isn't the most important thing. Love is. - Richard Feynman
I have no responsibility to live up to what others expect of me. That's their mistake, not my failing. - Richard Feynman
Religion is a culture of faith; science is a culture of doubt. - Richard Feynman
I was born not knowing and have had only a little time to change that here and there. - Richard Feynman
Physicists like to think that all you have to do is say, these are the conditions, now what happens next? - Richard Feynman
Physics is to math what sex is to masturbation. - Richard Feynman
Odiaría morir dos veces, sería tan aburrido!. - Richard Feynman
If you thought that science was certain - well, that is just an error on your part. - Richard Feynman
Philosophers say a great deal about what is absolutely necessary for science, and it is always, so far as one can see, rather naive, and probably wrong. - Richard Feynman
You can't fool nature. - Richard Feynman
I think nature's imagination Is so much greater than man's, she's never going to let us relax - Richard Feynman
I believe that a scientist looking at nonscientific problems is just as dumb as the next guy. - Richard Feynman
But there is nothing in biology yet found that indicates the inevitability of death. - Richard Feynman
There is no harm in doubt and skepticism, for it is through these that new discoveries are made. - Richard Feynman
I learned very early the difference between knowing the name of something and knowing something. - Richard Feynman
You can’t say A is made of B or vice versa. All mass is interaction. - Richard Feynman
Physics is like sex: sure, it may give some practical results, but that's not why we do it. - Richard Feynman
Science is like sex: sometimes something useful comes out, but that is not the reason we are doing it. - Richard Feynman
[Quantum mechanics] describes nature as absurd from the point of view of common sense. And yet it fully agrees with experiment. So I hope you can accept nature as She is - absurd. - Richard Feynman
For a successful technology, reality must take precedence over public relations, for nature cannot be fooled. - Richard Feynman
Science is what we have learned about how to keep from fooling ourselves. - Richard Feynman
Thank you very Much, I enjoyed myself - Richard Feynman
You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts. - Richard Feynman
The first principle is that you must not fool yourself - and you are the easiest person to fool. - Richard Feynman
A philosopher once said 'It is necessary for the very existence of science that the same conditions always produce the same results'. Well, they do not. You set up the circumstances, with the same conditions every time, and you cannot predict behind which hole you will see the electron. - Richard Feynman
The real question of government versus private enterprise is argued on too philosophical and abstract a basis. Theoretically, planning may be good. But nobody has ever figured out the cause of government stupidity and until they do (and find the cure) all ideal plans will fall into quicksand. - Richard Feynman