Su Shi's ancient poem related to it comes from "Qianchibi Fu": "Gai must observe its changes, and heaven and earth cannot be instantaneous; From its unchangeable point of view, things are endless to me. " This means that if you look at the world from a changing perspective, the world is changing all the time and never stops; And if we look at the world from a constant perspective, the world is quiet, eternal and unchanging.

For example, you can give it at will.

For example, if you have a good eye for a person, you will feel that he is full of advantages. If you look at him with a little love, he will be perfect. But if you regard him as a bad person, all you see is his shortcomings. If he is a person you hate, he is simply a disgusting person. It depends on your angle.

Also, half a glass of water. If you are a pessimist, what you see is that there is only half a glass of water left, what a pity; But from the optimist's point of view, what you see is that there is still half a glass of water, which makes people happy ~ ~

It depends on the angle you stand ~