1. Before you want to climb to the top of science, you should first study the preliminary knowledge of science. If you haven't fully understood the previous things, never start working on the later things. ——[Ancient Greece] Democritus: "Fragments of Works".

2. Things that take a long time to learn will not be easily forgotten. ——[Ancient Rome] Seneca: "Trojan Women".

3. If you want to consolidate the ideas you have mastered, you must stay among a limited number of masters of thought for a long time and digest their works. ——[Ancient Rome] Seneca: "Collected Letters to Luciliu".

4. Concentrating on learning broad arts will make a person’s character full of humanity. ——[Ancient Rome] Ovid: "Black Sea Tablets".

5. For smart and educated people, the pursuit of knowledge becomes more intense with age. ——[Ancient Rome] Cicero: "On Old Age".

6. It is ridiculous and disgraceful to wait until old age to learn basic knowledge; young people should accumulate knowledge, and old people should use knowledge. ——[Ancient Rome] Seneca: "Collected Letters to Luciliu".

7. If people don’t learn, they will do stupid things; houses and land are good, but not as good as knowledge. ——[UK] Garrick: "Court on the Knees Preface".

8. Knowledge is our carry-on property. Wherever we are, our knowledge is with us. ——[British] Shakespeare: "Love's Labour's Labour".

9. A little knowledge is very dangerous. ——[British] Pope: "Essays on Criticism".