If people's natural impulses are allowed to surge without check, conflicts are certain to break. This will lead to violation of social norms and disruption of social order, resulting in social unrest. Therefore, it is necessary to have teachers and models to give guidance to people and enlighten them through teaching of etiquette and ethical principles. When this is done, courtesy and deference will develop, people will observe social order in their words and deeds, and peace and stability will prevail. (Xunzi)