Climate models are like time machines - they allow us to peer into possible futures.

The purification of the soul is the highest pursuit in life.

We need to be part of the solution, not part of the problem.

世界变化非常快。大不再能打败小，而是快打败慢。

写作是理解世界的一种方式。

释义：天之险在于高不可升，地之险在于山川丘陵。王公设险以保卫国家，险的功用非常大。