不能通过正式手段从非正式到正式。

I don’t care what people think of me. I care what I think of myself.

We don't just mine coal, we power the nation.

你不是你自己。

关于MM定理最重要的事情不是它的现实性，而是它的简单性。

Success comes from understanding your customers better than they understand themselves.

我们不仅开采石油，更开采经济增长和发展的潜力。