Niels Bohr

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

Your theory is crazy, but it's not crazy enough to be true.

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.

It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we say about Nature.

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

Technology has advanced more in the last thirty years than in the previous two thousand. The exponential increase in advancement will only continue. Anthropological Commentary The opposite of a trivial truth is false the opposite of a great truth is also true.

There are trivial truths and the great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true.

Einstein, stop telling God what to do!

Prediction is very difficult, especially if it's about the future.

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.