If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.
NIELS BOHRIf quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet.
More Niels Bohr Quotes
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Accuracy and clarity of statement are mutually exclusive.
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It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.
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There are two sorts of truth: trivialities, where opposites are clearly absurd, and profound truths, recognised by the fact that the opposite is also a profound truth.
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The great extension of our experience in recent years has brought light to the insufficiency of our simple mechanical conceptions and, as a consequence, has shaken the foundation on which the customary interpretation of observation was based.
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A physicist is just an atom’s way of looking at itself.
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No paradox, no progress.
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When it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing mental connections.
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One must always do what one really cannot.
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Isolated material particles are abstractions, their properties being definable and observable only through their interaction with other systems .
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You must come to Copenhagen to work with us. We like people who can actually perform thought experiments!
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When we measure something we are forcing an undetermined, undefined world to assume an experimental value. We are not measuring the world, we are creating it.
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Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.
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Prediction is very difficult, especially if it’s about the future.
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Predition is risky, especially of the future.
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Physics is the belief that a simple and consistent description of nature is possible.
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