采石场运营中的每个挑战都是创新和改进的机会。

The moment you stop trying is the moment you stop learning.

Never use a credit card for credit. The only kind of credit， or debt， that is acceptable is debt to acquire something whose exchange value is extremely likely to increase， like in a home. The exchange value of most things diminishes or vanishes the moment you purchase them. Don’t be in debt to losers.

Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.

今天我们种下的每一棵树，都是留给素未谋面的后代的遗产。

A leader's legacy is measured by the sustainability of their actions.

Your most unhappy customers are your greatest source of learning.