A writer's greatest tool is empathy, the ability to feel with others, to see the world through their eyes.

The future of coal depends on balancing economic growth with environmental responsibility.

自然实验是理解现实世界中因果关系的强大工具。

写作的艺术是发现你真正相信的东西的艺术。

我不怕死，我怕不去尝试。