透明不仅仅是一种物理特性，它还是一种社会和政治特性。

The most important thing is to enjoy your life—to be happy—it's all that matters.

世界总是在为某人终结。

"I'd never given much thought to how I would die, but dying in the place of someone I love seems like a good way to go."

电影是使不可见变为可见的艺术。

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

这不是关于腿，而是关于心和思想。

适应力是在变化的世界中蓬勃发展的关键。

The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.