1, Yan Zhenqing-The night light comes on at five o'clock, which is the time for men to study. Teenagers only know how to play, but don't know how to study hard. When they are old, they regret why they didn't know how to study hard when they were young. Description: Boys study under the lamp until midnight, and early morning and late night are good opportunities to study.

2, Li Kuchan-Birds want to fly high, they have to flap their wings first, and people want to make progress, they have to learn first. It means: if a bird wants to fly high, it must first learn how to flap its wings; If people want to make progress, they must first enrich their knowledge.

3, Han Yu-industry is good at diligence, barren land; What I did was thought, but it was destroyed. Meaning: learning is proficient because of diligence, but it can also be abandoned in laughter; Things succeed because of repeated thinking, but they can also be destroyed casually.

4, Yue Fei-don't stay idle, white boy head, empty and sad. Don't idle away your time, your hair has turned gray and black, and only you regret it.

5, Ouyang Xiu-learning first, reading as learning. It means: to study and cultivate one's morality, learning should be the most important task. To teach knowledge, it is necessary to base it on the knowledge in books.

6, "Han Yuefu Long Songs"-Young people are strong and don't work hard, but the boss is sad. It means: work hard while you are young, and don't get old and accomplish nothing, leaving only sadness and regret.