领导者是知道方向、走在前方并指明方向的人。

"You must be the change you wish to see in the world."

"I have always liked the phrase 'nursing a grudge,' because many people are tender of their resentments, as of the thing nearest their hearts."

We are to remember that we are not to take anything with us out of this world, and that it is how we have conducted ourselves here that will matter in the end.

国际体系本质上是竞争性的，国家不断试图互相超越。