"To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others."

有时候爱是不够的，你必须离开。

激光对于阿秒物理学的意义，就像望远镜对于天文学的意义一样。

Sustainability isn't a choice; it's our responsibility to the next generation.

我是那种疯狂的人，如果我打了一个女孩的嘴而她还在笑。