The future of coal is not about the past; it's about innovation and sustainability.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

Your most unhappy customers are your greatest source of learning.

History is not just about facts, but about the shadows between them.

伟大的领导者不会告诉你该做什么，他们会向你展示如何去做。

I hope it will not be long before we have a machine that will be able to solve all mathematical problems.

领导力是关于以信念和同理心做出艰难的决定。

Peace if possible, truth at all costs.