"The moment of betrayal is the worst, the moment when you know beyond any doubt that you've been betrayed: that some other human being has wished you that much evil."

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

说到底，作家只是他书的一半。另一半是读者，作家从读者那里学习。

证明是一种用于使他人相信数学陈述为真的工具。

Sustainability isn't a choice anymore—it's a necessity for any business that wants to thrive in the long term.

壁画是空间与观者之间的对话。