Etiquette to a society is like clothes to an individual. If an individual has no clothes on and becomes completely naked, he will be shamed and teased, and his morality will be ruined; a society with no etiquette will be in tragedy and the communication among its members will be disrupted by meaningless conflictions and dissensions. If a society acts like a train, etiquette will be like the track which the train can only run on. If a society is a carriage for honor guests, etiquette will be the wheels and axil which the carriage can move on. Without etiquette, intimate may turn to an implacable foe, and friendly states or allies can become at war. We can find many such examples in history. Therefore I advise you to follow etiquette to all individuals and try not to violate any rule so that you won’t offend others or make an enemy.