You can see a person's ability when encountering great events and difficulties, and you can see a person's mind when encountering adversity and prosperity; In the face of great joy and great sorrow, you can see a person's self-restraint. People in groups do not know the so-called behavior, that is, the meaning of going or staying. When it comes to going or staying, it depends on your knowledge and whether you can make a correct judgment. If you should go, you should stay.