The principle of making friends ① Making friends is a process from equality to mutual benefit, and giving and sharing must be two-way, so as to achieve win-win or even win-win. No one is perfect, friends will inevitably have shortcomings, people will be different, and friends will inevitably have differences. (3) Sacrifice the so-called friendship before the principle. We should be happy to make friends, but be careful not to make bad friends.