I think I can safely say that nobody understands Quantum Mechanics.
If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.
Those who are not shocked when they first come across quantum theory cannot possibly have 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.
God does not play dice [with the universe]. [Ger., Gott wurfelt nicht.]
It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.
An expert is a man who has made all the mistakes which can be made, in a narrow field.
As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.
Basic research is what I am doing when I don't know what I am doing.
How wonderful that we have met with a paradox. Now we have some hope of making progress.
I don't like it, and I'm sorry I ever had anything to do with it.
If [quantum theory] is correct, it signifies the end of physics as a science.
There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe there ever was such a time ... On the other hand, I think I can safely say that nobody understands quantum mechanics.
Common sense is the collection of prejudices acquired by age eighteen.
Everything we call real is made of things that cannot be regarded as real.
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.
Every sentence I utter must be understood not as an affirmation, but as a question.
Quantum mechanics makes absolutely no sense.
When it comes to atoms, language can be used only as in poetry.
Imagination is more important than knowledge.
or simply:
