我认为最重要的是不要满足于现状。

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

效率和环境责任可以而且必须齐头并进。

The only thing I can do is paint.

你不该在旁观中度过一生，世界需要你参与其中。