我认为讲述故事的最好方式是展示它，而不是讲述它。
I think the best way to tell a story is to show it, not tell it.
You cannot always control what goes on outside, but you can always control what goes on inside.
The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.
数学中的合作是必不可少的；没有人能独自解决所有问题。
生活本身就是一种冒险，充满了未知和挑战。
The deepest insights often come from unexpected places.