His classmate died. Talk about comforting him.

In life, there are always many beautiful things that can't be kept. In life, there are always many pursuits that are hard to give up. You are the one who can't leave, not you who can't stay. I want to look down and relax. If you are alive, you must work hard, and don't let the living people get tired and bitter again. Life is too short, life is too busy, life is too tired, you should be willing to let go when you should, and you should resolutely refuse when you should give up.