Bookmark content and reading aphorisms are as follows:

1. The lights are on at three o'clock and the chickens are on at five o'clock, which is when men are studying. Black-haired people don't know how to study diligently early, and white-haired people regret studying late. —Yan Zhenqing

2. If a bird wants to fly high, it first flutters its wings; if a person wants to make progress, he first studies. ——Li Kuchan

3. The work is accomplished by hard work, and wasteful by play; actions are accomplished by thinking, and destroyed by casualness. ——Han Yu

4. Don’t wait and see. The young man’s head turns gray and he feels empty and sad. -Yue Fei

5. To establish oneself, one should put learning first, and to establish one's studies, reading is the basis. - Ouyang Xiu

6. If young people don’t work hard, old people will be sad. - "Han Yuefu·Chang Ge Xing"

7. Without learning, one cannot develop talents, and without ambition, one cannot achieve learning. -Zhuge Liang

8. Read thousands of volumes and write like a master. - Du Fu

9. If you want to know the affairs of the world, you must read the books of the ancients. - Feng Menglong

10. The method of reading is to proceed step by step, to read thoroughly and to think carefully. ——Zhu Xi

11. Read the book a hundred times, and its meaning will become apparent. —Chen Shou

12. Reading is like traveling, and there is no need to be afraid of adventures. - "Qing Shi Duo Reading"

13. Work hard at reading and enjoy writing. ——Cheng Duanli

14. The taste of foreign things will become disgusting after a long time; the taste of reading will become deeper and deeper as time goes by. ——Cheng Yi

15. Learning without thinking means nothing, thinking without learning means danger. - Confucius

16. He is keen and eager to learn, and he is not ashamed to ask questions. - Confucius

17. Those who know are not as good as those who are good at it, and those who are good at it are not as good as those who are happy. - Confucius

18. When three people are walking together, there must be my teacher. Choose the good ones and follow them, and change the bad ones. - Confucius

19. Read thousands of books and travel thousands of miles. ——Liu Yi

20. The books are as affectionate as old friends, and the joys and sorrows of the morning and dusk are like each other.

——Yu Qian