In a seminar, I heard the teacher in charge of a summer science camp complain that the students did not know how to be polite, calling the assistant professors "handsome" and "pretty". Another teacher also sighed and said that not to mention the children, even the new assistant professor in his department did not know how to address people, and even called him "Lao Zhang", which made him feel very uncomfortable. I was reminded of the saying in the Yen's Family Traditions: "Teach a woman to be a newcomer, and teach a child to be a baby". Manners should be taught to children as early as possible. In a radio program, I reminded parents to take advantage of the holidays to