1. A bowl of hot and sour soup is better understood by sipping it yourself. -Lu Xun

2. Discover the truth through practice, and then confirm and develop the truth through practice. -Mao Zedong

3. Practice determines theory, and real theory also has the function of leading action. -Zou Taofen

4. The academic performance of foreign students in China is often much better than that of American students who study together. However, ten years later, the scientific research results are much less than others, because American students have active thinking, strong practical ability and creative spirit. -Yang Zhenning

5. Action is Laozi, knowledge is his son, and creation is his grandson. -Tao Xingzhi

6. If you think about the problem without prejudice, if you think about the general nature of these guidelines, you can come to a completely different conclusion. Because all the rules are actually practical. -bradley

7. experience has taught us too many lessons, telling us that the most difficult thing for human beings to control is their own tongue. -Spinoza

8. The theory that leaves revolutionary practice is an empty theory, while the practice that is not guided by revolutionary theory is blind practice. -Stalin 9. We know nothing about the future except by analogy with past experience. -Lincoln

1. It is the greatest misfortune that theory is divorced from practice. -Leonardo da Vinci