Mencius put forward the idea of "controlling the people's property" economically. He said: "Those who have perseverance without constant property can only be competent by scholars. If the people, there is no constant production, because there is no perseverance. If you have no perseverance, you will do whatever you want. And being caught in a crime, and then being punished, is also a waste of people. " [1] "Constant production" means stable means of production, and "perseverance" means normal moral behavior. For the average person, if there is no certain means of production as a stable economic source, there will be no normal moral consciousness, people will do whatever it takes to survive, and society will be in chaos. If the rulers don't take effective measures to ensure the people's minimum material living conditions, and then punish them when they commit crimes, it will simply harm the people. Mencius also pointed out that "how can there be a benevolent person who is in power and can do it?" Therefore, if a wise monarch controls the property of the people, he will be able to support his parents and his wife, and he will be satisfied for life in happy years and avoid death in fierce years; Then drive away the goodness, so the people are also light. " [1] Therefore, a wise monarch mainly gives the people a certain industry, so that they can have the ability to support their wives and children, be able to have ample food and clothing in a good year, and not starve to death in a bad year. Only in this way can the people easily accept moral education and have a certain moral heart, thus being more obedient to the rulers and maintaining social stability. Source: learning theory, middle school