You have to believe in yourself when no one else does.

行义事不能进行时，不要责怪道义。 

The great and chief end, therefore, of men's uniting into commonwealths, and putting themselves under government, is the preservation of their property.

成功不在于你赚了多少钱，而在于你对人们生活的影响。

The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.