当没有人相信你的时候，你必须相信自己。

I stand up for what I believe in, and a lot of the time that can be against the grain.

For the best results with your children， spend only half the money you think you should， but double the time with them.

检验一个经济学家是否优秀的标准，是看他能否比别人更好地解释过去。