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Niels Bohr quotes (showing 1-30 of 35)

“An expert is a person who has made all the mistakes that can be made in a very narrow field.”
Niels Bohr
“Prediction is very difficult, especially about the future.”
Niels Bohr
“The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.”
Niels Bohr
“There are some things so serious that you have to laugh at them.”
Niels Bohr
“How wonderful that we have met with a paradox. Now we have some hope of making progress.”
Niels Bohr
“No, no, you're not thinking; you're just being logical.”
Niels Bohr
“Those who are not shocked when they first come across quantum theory cannot possibly have understood it.”
Niels Bohr, Essays 1932-1957 on Atomic Physics and Human Knowledge
“Everything we call real is made of things that cannot be regarded as real.”
Niels Bohr
“Never express yourself more clearly than you are able to think”
Niels Bohr
“Stop telling God what to do with his dice.”
Niels Bohr
“We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct. My own feeling is that it is not crazy enough.”
Niels Bohr
“Every great and deep difficulty bears in itself it’s own solution. It forces us to change our thinking in order to find it.”
Niels Bohr
“The meaning of life consists in the fact that it makes no sense to say that life has no meaning.”
Niels Bohr
“There are trivial truths and there are great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.”
Niels Bohr
tags: truth
“The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and description, respectively.”
Niels Bohr
“A physicist is just an atom's way of looking at itself.”
Niels Bohr
“Every sentence I utter must be understood not as an affirmation, but as a question.”
Niels Bohr, Nuclear Physics, 1929-1952
“Einstein, stop telling God what to do.”
Niels Bohr
“Everything we call real is made of things that cannot be regarded as real. If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.”
Niels Bohr
“You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.”
Niels Bohr
“Vivere est Cogitare”
Niels Bohr
“Prediction is very difficult, especially if it's about the future.”
Niels Bohr
“An expert is a man who has made all the mistakes which can be made in a very narrow field.”
Niels Bohr
“Anyone who can contemplate quantum mechanics without getting dizzy hasn't understood it.”
Niels Bohr
“It is the hallmark of any deep truth that its negation is also a deep truth”
Niels Bohr
“[About describing atomic models in the language of classical physics:]

We must be clear that 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.”
Niels Bohr
“كف عن إخبار الرب عما يجب عليه ان يفعله”
Niels Bohr
“The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.”
Niels Bohr
“Every sentence I utter must be understood not as an affirmation but as a question.

[A caution he gives his students, to be wary of dogmatism.]”
Niels Bohr
You must come to Copenhagen to work with us. We like people who can actually perform thought experiments!”
Niels Bohr

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