If you don’t drive your business, you will be driven out of business.

The only real wealth is the wealth of the soul.

城市是一个我们必须小心对待的生命有机体

Immigration has a much smaller effect on native wages than most people believe.

A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.

时间不是金钱，时间是生命。

一个人懒惰又奢侈，生活就会贫困；勤劳而节俭，生活就会富足。