没有行动的愿景只是梦想。

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

幸せになるためには、まず自分を愛さなければならない。

经济的关键是适度的竞争，而不是垄断。

真正的创新来自于对传统的深刻理解，从而能够恰当地打破它。