The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.

在每个角色中，都有我的一部分，而在我身上，也有我扮演过的每个角色的一部分。

The personal example of a teacher is the most useful sunshine that nothing can replace for the soul of young people.

创新不是闭门造车，而是开放协作。

世界上最伟大的事情就是知道如何属于自己。