I think Nietzsche said. When you point one finger at others, don't forget that there are three fingers pointing at yourself. I used to hear that a lot. In other words, when we talk to others or do other things, we can't point at others. This is very impolite. Why do you say that? In fact, when you point at others, there are still three fingers pointing at yourself, so when it comes to talking about others, it is easy to repay yourself. Let's be a kind person.