The content of the bookmark is as follows:

1. My lifelong hobby, apart from revolution, is reading. If I don't study for a day, I can't live. 11. Sun Yat-sen

2. He has read tens of thousands of volumes and writes like a god. ——Du Fu

3. Read thousands of books and travel thousands of miles. ——Gu Yanwu

4. There is no other way to study, but to be determined and open-minded, and to play it repeatedly and carefully will be effective. ——Zhu Xi

5. If you don’t have any hobbies in reading, you can do as much as you can. If you don't read a lot of books first, you will be at a loss or lose your preference. Go broad before going deep, and be broad before becoming specialized. ——Lu Xun

6. The method of reading is to proceed step by step, read well and think deeply. ——Zhu Bo

7. Reading should be done step by step. Read a book only after you are familiar with it. Do not be reckless or reckless. It is useless to read too much. ——Hu Juren

8. Reading is learning, excerpting is organizing, and writing is creating. ——Wu Han

9. You cannot read books with faith without thinking. You must boldly ask questions, be diligent in excerpting data, analyze data, and find out the interrelationships. This is a method of learning. ——Gu Jiegang

10. Books are like medicine. Good reading can cure stupidity. ——Liu Xiang

11. Reading more than ten thousand volumes without having a suitable master is like a man who suddenly got rich and has a hard time spending money. ——Zheng Banqiao

12. Knowing the past but not knowing the present is called sinking. Knowing the present but not knowing the past is called self-enlightenment. ——Wang Chong

13. One outline will make thousands of eyes open, and one volume will make everyone aware. ——Zheng Xuan

14. Knowledge is mainly acquired by taking the initiative, not by "teaching". ——Qian Sanqiang

15. Be tireless in learning and teaching.

——Confucius