随机评估可以帮助我们了解发展中哪些措施有效，哪些无效。
Randomized evaluations can help us understand what works and what doesn't in development.
Will you be clever at the expense of others， or will you be kind？
The Langlands program is a bridge between the discrete and the continuous.
The art of being wise is the art of knowing what to overlook.
The ultimate goal of artificial intelligence is to create machines that can perform tasks that would require intelligence if done by humans.
"Life is not measured by the number of breaths we take, but by the moments that take our breath away."
"Every book is a door to another world, a world that exists only in the imagination of the reader."
We don't inherit the land from our ancestors; we borrow it from our children.