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

技术的真正力量在于它连接我们的能力，不仅仅是连接信息，而是连接彼此。

"The past is a foreign country; they do things differently there."

"Language is a virus from outer space."

The computer is a medium of expression, like a piano is a medium of expression.