没有根本的气节，就好像醉汉喝醉酒打人，酒醉时很勇敢，酒醒后勇气全消，没有一点气力。没有以学问为根本的见识，就好像厨师在炉灶前面，面前光亮而背后黑暗。

The greatest thing in the world is to know how to belong to oneself.

If economists could manage to get themselves thought of as humble， competent people on a level with dentists， that would be splendid.

Patience and persistence are key to achieving long-term goals.

真正的挑战不仅仅是收集数据，而是理解这些数据的意义。

如果你没有失败，说明你不够努力。