模型最重要的不是其假设，而是其结论。

煤炭的真正成本不仅在于价格，还在于我们如何管理其后果。

I was asked to act when I couldn't act. I was asked to sing 'Funny Face' when I couldn't sing, and dance with Fred Astaire when I couldn't dance. Do what you can't do.

释义：日月依天而行，百谷草木依附地而生存。