I don't need a reason to be happy. I choose to be.

This is a group with many gifts. I'm sure one of your gifts is the gift of a smart and capable brain. I'm confident that's the case because admission is competitive and if there weren't some signs that you're clever， the dean of admission wouldn't have let you in.

We've been warned against offering the people of this nation false hope. But in the unlikely story that is America, there has never been anything false about hope.

Literature is the most effective weapon against fanaticism.

开放合作是通信产业持续发展的关键。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

和平之路没有捷径。

Chemistry is the art of building bridges between the microscopic and the macroscopic.

追随你的梦想，做你热爱的事情很重要。