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

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."

每个故事都有一个目的，每个声音都值得被听到。

The universe is not only stranger than we imagine, it is stranger than we can imagine.

People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, "Soften the orange a bit on the right hand corner." I don't try to control a sunset. I watch with awe as it unfolds.

记忆是编织民族历史的线，没有它，我们将注定重复同样的错误。