It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.
Anybody who is not shocked by this subject has failed to understand it. [of quantum mechanics]
Anyone not shocked by quantum mechanics has not yet understood it.
How wonderful that we have met with a paradox. Now we have some hope of making progress.
An expert is a man who has made all the mistakes which can be made, in a narrow field.
There is no hope for any speculation that does not look absurd at first glance.