One must always do what one really cannot.

Anyone who can contemplate quantum mechanics without getting dizzy hasn't understood it.

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.

Everything we call real is made of things that cannot be regarded as real.

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

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

I go into the Upanishads to ask questions.