采石业的创新不仅关乎新机械，更在于重新构想我们与开采土地的关系。

我只是尽力打好我的比赛并享受乐趣。当我享受比赛时，我会打得更好。

真相往往不止一个。

The digital revolution has transformed the way we think about markets, competition, and economic policy.

It's not worth doing something unless someone, somewhere, would much rather you weren't doing it.