How to understand the role of etiquette in the national spirit and social politics of China?

In ancient society, etiquette almost ran through the whole society. It is a tool used by the ruling class to manage and consolidate its position. With the development of society, the function of etiquette is more reflected in international communication. The purpose is also to improve the humanistic quality and spiritual outlook of the Chinese nation. At the same time, it is also a powerful weapon to improve the status of the whole social class in the world. Politeness travels around the world.