可持续发展不是目的地，而是需要持续改进和创新的旅程。

Land is a peculiar commodity, which is different from all others, and the quantity of it is always fixed and limited.

死者是看不见的，但他们并不缺席。

The most important thing is to be able to think like an economist, to see the world through that lens.

最终，我们只会后悔没有抓住的机会。

所有模型都是错误的，但有些是有用的。