1. if a worker wants to do a good job, he must sharpen his tools first. -Confucius

2. -Ouyang Xiu

3. The starting point of discovering thousands of millions is asking. -Tao Xingzhi

4. Read a hundred times, and its meaning is self-evident. -the reflection of the three kingdoms

5. study should have three hearts: one is confidence, the other is determination, and the third is perseverance. -Chen Jingrun

6. The method of familiarizing yourself with reading is gradual and orderly, while familiarizing yourself with reading and thinking carefully. -Zhu Xi

7. Be knowledgeable, interrogate, think carefully, distinguish clearly, and stick to it. -Book of Rites