"What you don't know can't hurt you, but it can kill you."

I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place.

在煤炭行业，今天的效率决定明天的存亡。

The effects of policy changes are often more nuanced than simple economic models suggest.

世界上有开朗的悲观主义者吗？我就是这样的人。