An independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.
Niels BohrRead
When asked ... [about] an underlying quantum world, Bohr would answer, 'There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about Nature.'
Interpretation
This quote emphasizes that physics describes nature through abstractions rather than revealing an ultimate reality.
Niels Bohr's quote highlights the distinction between the tangible world of nature and the abstract representations that physics provides. He argues that physics should not be viewed as a means to uncover the true essence of reality but rather as a discipline focused on the predictive descriptions and relationships that we can observe and articulate about nature, suggesting that our knowledge is inherently limited to these abstractions.
In practice
In a science lecture discussing the philosophy of physics.
An independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.
An expert is a man who has made all the mistakes which can be made, in a narrow field.
Those who are not shocked when they first come across quantum theory cannot possibly have understood it.
When searching for harmony in life one must never forget that in the drama of existence we are ourselves both actors and spectators.
And anyone who thinks they can talk about quantum theory without feeling dizzy hasn't yet understood the first thing about it.
Everything we call real is made of things that cannot be regarded as real.
You'll often hear the phrase "science doesn't know everything." Well, of course it doesn't know everything. But just because science doesn't know everything doesn't mean that it knows nothing.
I would only have been too pleased if someone had asked me for my data. If you really believed in your data, you wouldn't mind someone looking at it. You should be able to respond that if you don't believe me go out and do the measurements yourself.
Language is only the instrument of science, and words are but the signs of ideas.
No one knows who wrote the laws of physics or where they come from. Science is based on testable, reproducible evidence, and so far we cannot test the universe before the Big Bang.
Now we do have many examples of transitional sequences.
The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science.
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