成功是个糟糕的老师。它让聪明人认为他们不能失败。

The best way to find out if you can trust somebody is to trust them.

You must be the change you wish to see in the world.

Economics is at its best when it helps us solve real-world problems in a rigorous and transparent way.

有时最小的东西占据了心中最大的空间。