Richard Feynman Quotes
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Computer science is not as old as physics; it lags by a couple of hundred years. However, this does not mean that there is significantly less on the computer scientist's plate than on the physicist's: younger it may be, but it has had a far more intense upbringing!
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The test of all knowledge is experiment.
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Since then I never pay attention to anything by "experts". I calculate everything myself.
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But logic is not all, one needs one's heart to follow an idea.
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It is impossible, by the way, when picking one example of anything, to avoid picking one which is atypical in some sense.
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I am not interested in what today's mathematicians find interesting.
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First you guess. Don't laugh, this is the most important step. Then you compute the consequences. Compare the consequences to experience. If it disagrees with experience, the guess is wrong. In that simple statement is the key to science. It doesn't matter how beautiful your guess is or how smart you are or what your name is. If it disagrees with experience, it's wrong. That's all there is to it.
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We are not to tell nature what she’s gotta be... She's always got better imagination than we have.
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The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment.
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What would happen if we could arrange the atoms one by one the way we want them?
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Don't pay attention to "authorities," think for yourself.
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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.
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Some things that satisfy the rules of algebra can be interesting to mathematicians even though they don't always represent a real situation.
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To test whether you have learned an idea or a definition, rephrase what you just learned without using the new word.
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The fact that you are not sure means that it is possible that there is another way someday.
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You do not know anything until you have practiced.
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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!
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The same equations have the same solutions
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All mass is interaction.
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Although it is uncertain, it is necessary to make science useful. Science is only useful if it tells you about some experiment that has not been done; it is not good if it only tells you what just went on.