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。
La liberté commence où l'ignorance finit.
People lie for all kinds of reasons, but mostly they lie because the truth is too hard.
"Success is a lousy teacher. It seduces smart people into thinking they can't lose."
The only limits in life are the ones you set for yourself.