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.

Love is free; to promise for ever to love the same woman is not less absurd than to promise to believe the same creed.

Energy security is a crucial part of national strategic security, and we must firmly keep it in our own hands.

唯一能拯救世界的是重新发现人类的灵魂。