Everything is out of date, society is progressing, and etiquette is very different from before, but no matter how the society changes, we can't lose our nature. Our true nature and courtesy are not outside, but inside. Real Etiquette China still speaks etiquette, etiquette and politeness from 3,000 years ago to today. Diplomacy has diplomatic etiquette, etiquette and diplomatic terminology. However, there are always a few individuals who have damaged China's own image. From big countries to small classes, there are always people who have a bad collective image. A person shows not only himself, but also the dignity of a family, a collective, a group, a nation and even a country. So don't be influenced by bad social atmosphere. When necessary, we can stop them and strike back at them forcefully. We must not let them erode our original purest hearts, so Shang Yang's political reform and book of rites are out of date. We have not experienced that era, and we don't know how people lived at that time. It is difficult to get a true historical outlook only from the one-sided materials of historical books, movies and television. So it's better to do the present etiquette, etiquette and politeness well. Even primary school students know how to greet their elders politely. Isn't it hard to find such material? We are kind, we don't have to do anything deliberately, but what we do deliberately often leads to unsatisfactory results.