Dance like nobody's watching.

如果你想走得快，就一个人走。如果你想走得远，就一起走。

The challenges of today's coal industry require bold leadership and vision.

在一个国家中，一个人的自由止于另一个人的自由开始之处。

"Science is the art of asking the right questions and finding the answers through evidence and reason."

书籍是最安静、最恒久的朋友；它们是最易接近、最明智的顾问，也是最耐心的老师。