A: Han Yu's view of teachers' morality: (1) respecting teachers and valuing morality; (2) Ancient scholars must have teachers; (3) preaching and teaching to solve doubts; (4) Whether Tao is the fundamental standard of teachers; (5) The industry is diligent and lazy, and the success is lost.

Liu Zongyuan's view of learning from teachers: "To be a teacher". Liu Zongyuan fully affirmed the important role of teachers in preaching and teaching. He believes that without teachers, there would be no Ming Dow. If you want to "Ming Dow", you must follow the teacher. Without the guidance of a good teacher, it is impossible to become a talent, and without the help of a good friend, it is impossible to improve one's talents. Liu Zongyuan refused to be a teacher, but refused to accept the teacher's gift. But he did his best to answer those who came to ask him questions, and sincerely guided later scholars. He was indeed a teacher. He put forward the idea of "being a teacher by example", thinking that this can not only avoid secular discussion, but also "be good at Tao".