生活就像一首歌，有高潮也有低谷，但其中总有美好。

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

Sleep is good, death is better; but of course, the best thing would to have never been born at all.

写作的行为是一种乐观的行为。如果你觉得这无关紧要，你就不会费心去做。