This is a very good rule of making friends, so I think you will have a mentor in the end if you make friends like this. Dealing with relationships in interpersonal society is also quite handy. Never associate with friends with low quality.

In dealing with interpersonal relationships, you should be neither humble nor supercilious. You give me a foot, I'll give you a foot back. You treat me like jade and I treat you like dirt.

In daily life, there are often some people who are confused, so they have suffered a lot in these relationships and made them particularly complicated.

Only wise people can make friends in the topic.