The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences.

过去是一个陌生的国度；那里的人们行事方式不同。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

"We are all ghosts of our former selves, haunting the places we once knew."

The most difficult thing is to be simple.

You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement and, at the same time, share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful.

God writes the Gospel not in the Bible alone, but also on trees, and in the flowers and clouds and stars.