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.

When asked ... [about] an underlying quantum world, Bohr would answer, 'There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about Nature.'

When searching for harmony in life one must never forget that in the drama of existence we are ourselves both actors and spectators.

If you think you understand it, that only shows that you don't know the first thing about it.

A person who wasn't outraged on first hearing about quantum theory didn't understand what had been said.

All rising curves that show unwelcome trends in human affairs will approach infinity if extended far enough, but it is we who dictate the curve and not vice versa.

One must always do what one really cannot.