"Two sorts of truth: profound truths recognized by the fact that the opposite is also a profound truth, in contrast to trivialities where opposites are obviously absurd."

Niels Bohr Philosophy See all quotes by Niels Bohr →

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“Oh, what idiots we all have been. This is just as it must be.”

“I am absolutely prepared to talk about the spiritual life of an electronic computer: to state that it is reflecting or is in a bad mood... The question whether the machine really feels or ponders, or whether it merely looks as though it did, is of course absolutely meaningingless.”

“How wonderful that we have met with a paradox. Now we have some hope of making progress.”

“Never express yourself more clearly than you are able to think.”

“Every valuable human being must be a radical and a rebel, for what he must aim at is to make things better than they are.”

“It is not enough to be wrong, one must also be polite.”

Resonant Thoughts

"The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true…"

— Carl Sagan

Science1934–1996

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"The proximity between the counterfeit and the good coin does not make the good coin counterfeit nor the counterfeit good. In the same way the proximity between truth and falsehood does not make truth …"

— Imam Al-Ghazali (R.A.)

Philosophy1056–1111

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"Traditional scientific method has always been at the very best 20-20 hindsight. It's good for seeing where you've been. It's good for testing the truth of what you think you know, but it can't tell yo…"

— Robert M. Pirsig

Literature1928–2017

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"For me personally, Wittgenstein was perhaps the philosopher who, besides Russell and Frege, had the greatest influence on my thinking. The most important insight I gained from his work was the concept…"

— Rudolf Carnap

Philosophy1891–1970

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