如果你没有失败，说明你不够努力。

煤炭的可持续未来取决于我们能否在不牺牲依赖该行业的人的生计的情况下整合更清洁的做法。

In economics, as in life, the answers are often more nuanced than they first appear.

The only lies for which we are truly punished are those we tell ourselves.

如果你在写作时不享受，读者也不会享受阅读。