1. If you don't climb the mountain, you don't know the height of the sky; If you don't go into the deep valley, you don't know how thick the ground is.
2. Practice determines theory, and real theory also has the function of leading actions. -Zou Taofen (middle)
3. From it, truth comes from practice.
4. All true knowledge comes from direct experience.
5. Use theory to promote practice, and use practice to correct or supplement theory. -Liao Mosha (middle)
6. Don't climb mountains, don't show the ground.
7. There must be a beginning in chaos, and there must be a reason for everything.
8. If you want to know the taste of pears, you must taste them yourself. -Mao Zedong
9. Don't brag or belittle yourself. Your actions are the most convincing.
1. Only one theoretical proof can move me more than fifty facts. -Diderot, what you say is what you do, what you do is what you know, so-called true knowledge. If you talk but don't do it, you will be confused when you meet something. -Wang Tingxiang (Ming)
11. With both hands and one brain, miracles can be created.
12. Good steel should be used on the blade.
13. If you don't take Wan Li Road, you won't get an iron footboard.
14. A person can only learn to skate through the stage of staggering himself like a fool. -Bernard Shaw (English)
15. Practice determines theory, and real theory also has the function of leading action. -Zou Taofen (middle)
16. A knowledgeable person who doesn't practice is equal to a bee who doesn't make honey. -Saadi (Persia)
17. Seeing is believing, and rumors may not be true.
18. You can tell a fish by the water, and a bird by the mountain.
19. You can't make a good sailor without drinking a few mouthfuls of seawater.
2. If you think about difficult problems without prejudice, if you think about the general nature of these criteria, you can come to a completely different conclusion. Because all the rules are actually practical. -bradley