最高深的道理往往是最简单的，但演化出的变化却极其复杂。

Leadership is not about being in charge. It's about taking care of those in your charge.

Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth.

中心地的等级越高，其服务的区域越大，此类中心地的数量越少。