自然界运行的规律就是，发展到尽头则走向反面，发展到极盛则走向衰落。

心理学研究的重点不是心灵是什么，而是心灵做什么。

True progress in agriculture comes from balancing technology with tradition.

The best way to learn econometrics is by doing—working with real data and real problems.

The best time to work on your career is when you're in your 20s.

The poet’s voice is the voice of the outsider looking in.

宽容大量容一切之物，站稳立场做人；踏实的地方站立，稳当之处着手。

人们并不懒惰。他们只是有无力的目标——也就是说，那些不能激励他们的目标。

在朝堂上也可以当一名隐士，何必非要到深山老林中去呢？