The tragedy of great power politics is that it leads to conflict and war.

最好的故事是那些让你以新的方式看世界的故事。

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

教学应始终适应学生的发展阶段。

领导力就是赋予他人力量，让他们实现自己认为不可能的事情。