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" For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. "

Richard P. Feynman

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" It is necessary to look at the results of observation objectively, because you, the experimenter, might like one result better than another. "

Richard P. Feynman

" If I get stuck, I look at a book that tells me how someone else did it. I turn the pages, and then I say, 'Oh, I forgot that bit,' then close the book and carry on. Finally, after you've figured out how to do it, you read how they did it and find out how dumb your solution is and how much more clever and efficient theirs is! "

Richard P. Feynman

" It's the way I study - to understand something by trying to work it out or, in other words, to understand something by creating it. Not creating it one hundred percent, of course; but taking a hint as to which direction to go but not remembering the details. These you work out for yourself. "

Richard P. Feynman

" The ideas associated with the problems of the development of science, as far as I can see by looking around me, are not of the kind that everyone appreciates. "

Richard P. Feynman

" It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man. "

Richard P. Feynman

" Investigating the forces that hold the nuclear particles together was a long task. "

Richard P. Feynman

" 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 wrong. "

Richard P. Feynman

" With the exception of gravitation and radioactivity, all of the phenomena known to physicists and chemists in 1911 have their ultimate explanation in the laws of quantum electrodynamics. "

Richard P. Feynman

" Today, all physicists know from studying Einstein and Bohr that sometimes an idea which looks completely paradoxical at first, if analyzed to completion in all detail and in experimental situations, may, in fact, not be paradoxical. "

Richard P. Feynman

" 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 P. Feynman

" We do not know where to look, or what to look for, when something is memorized. We do not know what it means, or what change there is in the nervous system, when a fact is learned. This is a very important problem which has not been solved at all. "

Richard P. Feynman

" I was a very shy character, always feeling uncomfortable because everybody was stronger than I, and always afraid I would look like a sissy. Everybody else played baseball; everybody else did all kinds of athletic things. "

Richard P. Feynman

" The extreme weakness of quantum gravitational effects now poses some philosophical problems; maybe nature is trying to tell us something new here: maybe we should not try to quantize gravity. "

Richard P. Feynman

" The correct statement of the laws of physics involves some very unfamiliar ideas which require advanced mathematics for their description. Therefore, one needs a considerable amount of preparatory training even to learn what the words mean. "

Richard P. Feynman

" People are always asking for the latest developments in the unification of this theory with that theory, and they don't give us a chance to tell them anything about one of the theories that we know pretty well. They always want to know things that we don't know. "

Richard P. Feynman

" I don't understand what it's all about or what's worth what, but if the people in the Swedish Academy decide that x, y or z wins the Nobel Prize, then so be it. "

Richard P. Feynman

" Physics has a history of synthesizing many phenomena into a few theories. "

Richard P. Feynman

" We're always, by the way, in fundamental physics, always trying to investigate those things in which we don't understand the conclusions. After we've checked them enough, we're okay. "

Richard P. Feynman

" There is always another way to say the same thing that doesn't look at all like the way you said it before. I don't know what the reason for this is. I think it is somehow a representation of the simplicity of nature. "

Richard P. Feynman

" I was born not knowing and have had only a little time to change that here and there. "

Richard P. Feynman

" Quarks came in a number of varieties - in fact, at first, only three were needed to explain all the hundreds of particles and the different kinds of quarks - they are called u-type, d-type, s-type. "

Richard P. Feynman

" From the point of view of basic physics, the most interesting phenomena are, of course, in the new places, the places where the rules do not work - not the places where they do work! That is the way in which we discover new rules. "

Richard P. Feynman

" It is always good to know which ideas cannot be checked directly, but it is not necessary to remove them all. It is not true that we can pursue science completely by using only those concepts which are directly subject to experiment. "

Richard P. Feynman

" There is a computer disease that anybody who works with computers knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is that you 'play' with them! "

Richard P. Feynman

" The thing that doesn't fit is the thing that's the most interesting: the part that doesn't go according to what you expected. "

Richard P. Feynman

" I don't believe in honors - it bothers me. Honors bother: honors is epaulettes; honors is uniforms. My papa brought me up this way. "

Richard P. Feynman

" I wanted very much to learn to draw, for a reason that I kept to myself: I wanted to convey an emotion I have about the beauty of the world. "

Richard P. Feynman

" When I was a young man, Dirac was my hero. He made a breakthrough, a new method of doing physics. He had the courage to simply guess at the form of an equation, the equation we now call the Dirac equation, and to try to interpret it afterwards. "

Richard P. Feynman

" I practiced drawing all the time and became very interested in it. If I was at a meeting that wasn't getting anywhere - like the one where Carl Rogers came to Caltech to discuss with us whether Caltech should develop a psychology department - I would draw the other people. "

Richard P. Feynman

" We seem gradually to be groping toward an understanding of the world of subatomic particles, but we really do not know how far we have yet to go in this task. "

Richard P. Feynman