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The more precise the measurement of position, the more imprecise the measurement of momentum, and vice versa.

— Werner Heisenberg

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Notes from Wikiquote

As quoted in "The Uncertainty Principle" at the American Institute of Physics

Variants

The more precisely the position is determined, the less precisely the momentum is known in this instant, and vice versa.

More quotes by Werner Heisenberg

There is a fundamental error in separating the parts from the whole, the mistake of atomizing what should not be atomized. Unity and complementarity constitute reality.

Light and matter are both single entities, and the apparent duality arises in the limitations of our language.

We have to remember that what we observe is not nature herself, but nature exposed to our method of questioning.

Physics and Philosophy (1958)

The existing scientific concepts cover always only a very limited part of reality, and the other part that has not yet been understood is infinite.

Physics and Philosophy (1958)

After a great war, history is written by the victors and legends develop which glorify them.

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Attribution

Quote text and notes from Wikiquote: Werner Heisenberg (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.