Confucius said: "learning without thinking is useless;" It is dangerous to think without learning. " This is the third sentence, which shows that a qualified teacher should not only rely on knowledge books, but also be a teacher who can give play to his own opinions and lead students to use their brains. China lacks such teachers most.

Confucius said, "Reviewing the past and learning the new can be a teacher." If what you say is this sentence, it means that a teacher should make progress with his students, and he can't feel that he is the best student in the world like some teachers now, and get angry when he puts forward different opinions.

Zi Gong asked, "Why did Confucius call it Wen?" Confucius said, "I am quick and eager to learn, and I am not ashamed to ask questions. It is called' Wen'."

This is the fifth item. I don't see any contradiction, even related to both sentences. It can be said to be a supplement.