The best investment we can make is in the health of future generations.

A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.

I’m not afraid. I’m focused.

和你结婚的，不只是一个人，而是一个家庭。

自由与秩序并非不相容；真理即力量；自由讨论是真理的生命。