真正的挑战不仅仅是构建气候模型，而是解读它们告诉我们的信息。

The world is full of people who have never, since childhood, met an open doorway with an open mind.

A great leader takes people where they don't necessarily want to go, but ought to be.

自由民主制度可能并不完美，但它是我们拥有的最好的制度。

你在20多岁所做的事情将塑造你的未来。