There are too many such teachers, because every normal person firmly remembers "learning to be an excellent official" and "being responsible for every child". Therefore, he will be strict with his students in all aspects, hoping that students will develop good behavior habits and good study habits under their own requirements. Although such strict requirements are unreasonable and even ridiculous to students and outsiders, teachers still do it as always. He is happier with the students' progress than the students themselves, and he is very self-blaming and sad about the mistakes made by the students. This is the teacher, worthy of the glorious title of "people's teacher".