Richard Feynman Quotes

Science is what we have learned about how to keep from fooling ourselves.

Jiry, don't worry about anything. Go out and have a good time.

A TUZZO LANTO
Poici di Pare

TANto SAca TULna TI, na PUta TUchi PUti TI la.
RUNto CAta CHANto CHANta MANto CHI la TI da.
YALta CAra SULda MI la CHAta Picha Pino Tito BRALda pe te CHIna nana CHUNda lala CHINda lala CHUNda!
RONto piti CA le, a TANto CHINto quinta LALda ola TiNta dalla LALta, YENta PUcha lalla TALta!

It is probably better to realize that the probability concept is in a sense subjective, that it is always based on uncertain knowledge, and that its quantitative evaluation is subject to change as we obtain more information.

There were a lot of fools at that conference — pompous fools — and pompous fools drive me up the wall. Ordinary fools are all right; you can talk to them, and try to help them out. But pompous fools — guys who are fools and are covering it all over and impressing people as to how wonderful they are with all this hocus pocus — THAT, I CANNOT STAND!

Science alone of all the subjects contains within itself the lesson of the danger of belief in the infallibility of the greatest teachers of the preceding generation.

One time I was in the men's room of the bar and there was a guy at the urinal. He was kind of drunk, and said to me in a mean-sounding voice, "I don't like your face. I think I'll push it in."<P>I was scared green. I replied in an equally mean voice, "Get out of my way, or I'll pee right through ya!"

Prof. Wheeler was called away last night so I took over his course in mechanics for the day. I spent all last night preparing. It went very nicely and smoothly. It was a good experience — -I guess I'll do a lot of that.

"A philosopher once said, "It is necessary for the very existence of science that the same conditions always produce the same results." Well, they don't!"

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, they don't learn by understanding; they learn by some other way — by rote, or something. Their knowledge is so fragile!

there is a physical problem that is common to many fields, that is very old, and that has not been solved. It is not the problem of finding new fundamental particles, but something left over from a long time ago — over a hundred years. Nobody in physics has really been able to analyze it mathematically satisfactorily in spite of its importance to the sister sciences. It is the analysis of circulating or turbulent fluids.

"The first person you should be careful not to fool is yourself. Because you are the easiest person to fool".

You can’t say A is made of B or vice versa. All mass is interaction.

We always have had ... a great deal of difficulty in understanding the world view that quantum mechanics represents. At least I do, because I'm an old enough man that I haven't got to the point that this stuff is obvious to me. Okay, I still get nervous with it. And therefore, some of the younger students ... you know how it always is, every new idea, it takes a generation or two until it becomes obvious that there's no real problem. It has not yet become obvious to me that there's no real problem. I cannot define the real problem, therefore I suspect there's no real problem, but I'm not sure there's no real problem.

Details that could throw doubt on your interpretation must be given, if you know them. You must do the best you can — if you know anything at all wrong, or possibly wrong — to explain it. If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it. There is also a more subtle problem. When you have put a lot of ideas together to make an elaborate theory, you want to make sure, when explaining what it fits, that those things it fits are not just the things that gave you the idea for the theory; but that the finished theory makes something else come out right, in addition.