Ancient feudal ethics advocated "heaven and earth respect each other". Teachers and students are a kind of relationship of respect and inferiority. Students should bow and kowtow to the teacher and do whatever the teacher says. "Students can kneel and teachers can bear it." ; Modern advocates education equality, advocates the establishment of close and friendly teacher-student relationship between teachers and students, and achieves educational goals through care and encouragement.

In ancient times, we firmly believed that "strict teachers make excellent students" and were strict with students, and achieved "heavy courtesy" through "self-denial"; Education pays attention to emotional expression, so that students can devote themselves to learning from the heart.

Nowadays, students are psychologically fragile, and too tough education methods may have the consequences of being too rigid and easy to fold.