Confucius' famous saying is as follows:

1. Learning from time to time is not bad: this sentence means reviewing and practicing in time after learning knowledge, won't it make you happy? This is a learning method advocated by Confucius, and it is also called reviewing the old and learning the new.

2. Don't do to others what you don't want others to do to you: This sentence is the golden rule of Confucius, which means don't impose on others what you don't want to accept.

3. Those who know something are not as good as those who are good, and those who are good are not as good as those who enjoy it. This sentence means that people who know something are not as good as those who like to do it, and those who like to do it are not as good as those who get pleasure from it.

4. In a threesome, there must be a teacher: this sentence means that there must be something I can learn when walking with others. This is the modest and eager-to-learn spirit advocated by Confucius, encouraging people to keep a heart of knowledge at all times.

5. A gentleman means justice, while a villain means benefit: This sentence means that a noble person understands morality, while a despicable person understands benefit.

6. You can learn something new by reviewing old knowledge, so you can be a teacher. This sentence means that you can gain new knowledge by reviewing old knowledge. This is the guidance of Confucius on learning methods, telling us to be good at summing up experiences and lessons and constantly updating our knowledge system.

7. An upright man is open and poised while a petty man is anxious and worried.: This sentence means that a gentleman is open-minded and fearless, while a villain is narrow-minded and always worried.

8. Keep your word and do what you want: This sentence means that you should keep your word and be decisive in doing things. This is a basic requirement for people, but also a strict requirement for themselves.

9. A gentleman can't have enough to eat, and he can't live in peace: This sentence means that a gentleman should also have a higher pursuit of spiritual life, not satisfied with the status quo, but should constantly strive for a higher realm.

1. Gentlemen are harmonious but different, while villains are identical but not harmonious: This sentence means that the difference between gentlemen and villains is that gentlemen can respect the differences of others and be harmonious but not harmonious, while villains will only pursue superficial consistency and be identical but not harmonious.