The most common way people give up their power is by thinking they don’t have any.

Success is not final, failure is not fatal: It is the courage to continue that counts.

In the end, that's what this election is about. Do we participate in a politics of cynicism or a politics of hope?

你可以锁上你的图书馆；但对我的思想自由，你无法设置任何门闩、锁或插销。

即使世界正在转向低碳解决方案，石油和天然气的创新也不会停止。