人生的课程将以它们需要的顺序出现在你面前。任何你需要掌握的课程其实都在你身上。当你真正掌握了一节课之后，下一节课就会出现。如果你还活着，这就意味着你还有课程需要学习。

The great and chief end, therefore, of men's uniting into commonwealths, and putting themselves under government, is the preservation of their property.

建筑业必须进化，否则就有被淘汰的风险。