1. There are three friends who benefit and three friends who lose. Friends are straightforward, friends forgive, and friends hear more, which is beneficial; Friends are easy to break, friendly and soft, and friends are easy to lose. -from the Analects of Confucius Ji's Chapter

Explanation: There are three kinds of beneficial friends and three kinds of harmful friends. It is beneficial to make friends with honest people, honest people and knowledgeable people. It is harmful to make friends with flatterers, those who flatter on the surface but slander others behind their backs, and those who are good at rhetoric.

2. Gentlemen are harmonious but different, while villains are identical but not harmonious. -from the Analects of Confucius Zi Lu

Explanation: A gentleman can maintain a harmonious atmosphere with his surroundings, but he should have his own independent views on everything, instead of blindly echoing others; Little people don't have their own independent opinions. Although they are always consistent with others, they don't really care about real harmony.

3. It's a shame to be a gentleman. The number of friends is sparse. -from the Analects of Confucius

Explanation: If you have something to do, you always follow the monarch (leader). Although you are close, it is not far from humiliating yourself; You are always with your friends when you have something to do. Although it seems close, it is not far from your estrangement.

4. In a threesome, there must be a teacher. Choose the good one and follow it, and change the bad one. -from the Analects of Confucius

Explanation: Several people are walking together, and there must be someone who can be my teacher. We should choose their advantages to study. If we see their shortcomings, we should reflect on whether we have the same shortcomings as them. If so, we should correct them together.

5. Don't make friends worse than yourself. -from the Analects of Confucius

explanation: no friend is inferior to yourself.