1. Knowledge is power. ——Thomas Hobbes.

2. The history of knowledge is like a great polyphony, in which the voices of all nationalities sound one after another. ——Goethe.

3. Except for knowledge and learning, no other power in the world can establish dominance and authority in people's spirits and hearts, and in people's thoughts, imaginations, opinions and beliefs. ——Francis Bacon.

4. Knowledge, when wisdom is unable to control it, will be like a stubborn horse overturning its rider. ——F Quarles.

5. If a person has no knowledge, he is like a zombie. ——Thor Ingelund.

6. No matter what kind of knowledge you master, it is useful for intelligence. It will throw away useless things and retain good things. --da Vinci.

7. Knowledge is real knowledge only when it is obtained by positive thinking rather than by memorizing evidence. ——Tolstoy.

8. Knowledge is the garland on the head, and property is the shackles on the neck. --Iran.

9. Knowledge is the best honor for young people, the greatest comfort for the elderly, the most valuable property for the poor, and the most precious decoration for the rich. ——Diogenes.