Stop telling God what to do with his dice.

No, no, no, you are not thinking; you are just being logical.

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.

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.

You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.

In quantum observation here and now changes in general the 'state' of the observed system....I consider the unpredictable change of the state by a single be an abandonment of the idea of the isolation of the observer from the course of physical events outside himself.

Sometimes the child in one behaves a certain way and the rest of oneself follows behind slowly shaking its head.

Humanity will... be confronted with dangers of unprecedented character unless, in due time, measures can be taken to forestall a disastrous competition in such formidable armaments and to establish an international control of the manufacture and use of the powerful materials.

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

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.

An expert is a person who has found out by his own painful experience all the mistakes that one can make in a very narrow field.

If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.

Every description of natural processes must be based on ideas which have been introduced and defined by the classical theory.

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

Those who are not shocked when they first come across quantum theory cannot possibly have understood it.

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

Perhaps I have found out a little about the structure of atoms.

Einstein, stop telling God what to do!

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.

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

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

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

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

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.

An expert is a person who has made all the mistakes that can be made in a very narrow field.

The meaning of life consists in the fact that it makes no sense to say that life has no meaning.

Physics is not about how the world is, it is about what we can say about the world.

Every sentence I utter must be understood not as an affirmation, but as a question.

A physicist is just an atom's way of looking at itself.

We all agree that your theory is crazy but is it crazy enough.

An expert is someone who knows some of the worst mistakes, which can be made, in a very narrow field.

In our description of nature the purpose is not to disclose the real essence of the phenomena but only to track down, as far as possible, relations between the manifold aspects of our experience.

There are some things so serious you have to laugh at them.

Technology has advanced more in the last thirty years than in the previous two thousand. The exponential increase in advancement will only continue.

Anyone who is not shocked by quantum theory has not understood it.

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.

You are not thinking, you are just being logical.

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

It is the hallmark of any deep truth that its negation is also a deep truth.

While the finish given to our picture of the world by the theory of relativity has already been absorbed into the general scientific consciousness, this has scarcely occurred to the same extent with those aspects of the general problem of knowledge which have been elucidated by the quantum theory.

No, no, you're not thinking; you're just being logical.

The Stone Age didn't end because the World ran out of stones.

The very fact that knowledge is itself the basis for civilization points directly to openness as the way to overcome the present crisis.

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

We are suspended in language.