我们必须在能源安全的需求和减少排放的紧迫性之间取得平衡。

我不喜欢做简单的事，我喜欢挑战自己。

The best way to predict the future is to invent it.

The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.