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

生活中最重大和最重要的问题从根本上都是无法解决的。它们永远无法被解决，只能被超越。

文学是作者和读者之间不断的对话。

Life is a leaf of paper white，thereon each of us may write his word or two.

心灵是大自然对生存挑战的回应。