采石业的创新不仅关乎机械，还关乎远见和可持续性。

理解变化的唯一方法是投入其中，随之而动，并加入舞蹈。

In my country we go to prison first and then become President.

The market is a pendulum that forever swings between unsustainable optimism (which makes stocks too expensive) and unjustified pessimism (which makes them too cheap). The intelligent investor is a realist who sells to optimists and buys from pessimists.

Power is not given to you. You have to take it.

Science is a wonderful thing if one does not have to earn one's living at it.