Zou in the Warring States Period wrote Mencius on Li Lou: "If you leave Lou Ziming, you will lose your son. If you don't obey the rules, it is not Fiona Fang. "

There is a famous saying in the ancients that "it's like a clever hammer making its own tools to draw circles and squares, so that later craftsmen can know how to draw circles and squares." The ancients also called it ruler rope ink. The country can't have no rules for a day, the family can't have no rules for a day, and the school can't have no discipline for a day.