The anarchic nature of the international system forces states to compete for power.
Efficiency is doing things right; effectiveness is doing the right things.
The essence of mathematics lies in its ability to reveal hidden patterns and structures in the universe.
"Every story is a journey, and every journey changes the traveler."
The only way to predict the future is to create it.
科学要求一个人付出他的一生。
世界充满了故事，但所有的故事都是一个。
I've learned that you can't control what other people say about you, but you can control how you react to it.
Mathematics is a collaborative endeavor. No one does it alone.