Journalism can never be silent: that is its greatest virtue and its greatest fault.

Words are the only thing that lasts forever.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.

演讲者应让听众充分相信，他已竭尽全力为他们带来愉悦与教益。

你只要努力做义事，我还要把天下送给你。 

Collaboration beats competition when the goal is meaningful progress.

The energy transition must be just - we owe that to the communities that have powered our nation for generations.

学习和思考的时间远远多于做事的时间，这种习惯绝非偶然。