Do not put forward anything that you cannot prove by experimentation.

债券市场是未来经济活动的最终预测者。

The knowledge of the past stays with us to spur us on to new and better things.

书是一面镜子：如果一只猿猴往里看，不太可能有一位使徒往外看。

We must be realistic about the pace of change. The world will need oil and gas for decades to come, even as we invest in lower-carbon solutions.

I don't want to be perfect, but I do want to be a role model.