The act of writing is an act of resistance against the forces that seek to silence us.

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

自然界的现象，无论是机械的、化学的还是生命的，几乎完全在于通过空间、活力和热之间的持续相互转化。

学习不是一个被动的过程；它涉及知识的主动构建。

我很少解释，不回应，但我知道自己在做什么。