大军过境，草木皆焚。

Randomized evaluations can help us understand what works and what doesn't in development.

I don’t create; I find.

"To live is to suffer, to survive is to find some meaning in the suffering."

The circumstances of the world are continually changing, and the opinions of man change also; and as government is for the living, and not for the dead, it is the living only that has any right in it.

最好的建筑是那种消失的建筑，只留下体验。