A good mathematician is not one who knows all the answers, but one who asks the right questions.

"We are all in the gutter, but some of us are looking at the stars."

The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inward world.

I like to leave space for the reader's imagination to work.

真相很少是纯粹的，也从不简单。