当没有人相信你的时候，你必须相信自己。

The future of energy is not either/or—it's all of the above.

The challenge of our time is to harness energy without harming the planet.

理解经济波动的关键在于技术冲击与建造新资本所需时间之间的相互作用。

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

历史不是发生过的事，历史只是历史学家告诉我们的故事。