创新不仅仅是新想法，而是如何有效地执行它们。

过去的艺术被神秘化，因为一个特权少数派正在努力发明一种历史，这种历史可以回溯性地证明统治阶级的角色。

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

Thank God, under our Constitution there was no connection between church and state.

I don’t need a reason to be fearless.