Richard Feynman Quotes
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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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We are not to tell nature what she’s gotta be... She's always got better imagination than we have.
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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 decide upon the answer is not scientific. In order to make progress, one must leave the door to the unknown ajar ajar only.
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What is not surrounded by uncertainty cannot be the truth.
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Science is of value because it can produce something.
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The test of all knowledge is experiment.
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Don't pay attention to "authorities," think for yourself.
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Since then I never pay attention to anything by "experts". I calculate everything myself.
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I am not interested in what today's mathematicians find interesting.
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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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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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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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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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All mass is interaction.
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The same equations have the same solutions
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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.