真正的美国发现还在我们面前。我们精神、我们人民、我们强大而不朽的土地的真正实现，尚未到来。

The future belongs to the era of new energy.

写作是一种记忆的形式。

A sustainable future for coal depends on our ability to integrate cleaner practices without sacrificing the livelihoods of those who depend on the industry.

Stay true to yourself and never let what somebody else says distract you from your goals.

创新不是一蹴而就的，而是需要持续不断的努力和积累。