优秀的领导者不能只有应对危机的计划，更要有一个主动的规划。

I always say that beauty is not just physical. It's about what you have inside. It's about your character, your spirit, and your soul.

That is what learning is. You suddenly understand something you've understood all your life, but in a new way.

True leadership is about serving others, not yourself.

The moment you doubt whether you can fly, you cease for ever to be able to do it.

In mathematics, truth is somewhere out there in a place we don’t yet know, and the only way we can hope to find it is by exploring.

生活中唯一不变的是变化。