There is, I believe, in every disposition a tendency to some particular evil, a natural defect, which not even the best education can overcome.

Every decision we make today shapes the world of tomorrow.

煤炭使美国在世界范围内保持竞争力。

I think the most important thing is to have a good story and to tell it well.

每个项目都是新的挑战，新的学习机会。