1: "Life is inherently sad and serious. We came to this beautiful world, met each other, greeted each other, and traveled together for a short period of time. Then we lost each other, and It disappears inexplicably, just like we suddenly came into the world inexplicably."

2: You are so accustomed to this world that you will not be surprised by anything.

3: It’s impossible for everyone in this world to like me, and I don’t need everyone to like me. I can only say that many people don’t understand me yet.

4: Real knowledge comes from the heart, not from others. At the same time, only knowledge from the heart can make people have true wisdom.

5: But the meaning in our lives must be created by ourselves. The meaning of existence is to create our own life.

6: Throughout the history of philosophy, philosophers have always wanted to explore human nature. But Sartre believed that people do not have an unchanging "nature". Therefore, there is no use in pursuing an extensive "consciousness" of life. In other words, we are meant to create this meaning ourselves. We are like actors who are dragged onto the stage before we have learned our lines, without a script or a prompter whispering to us what to do. We must decide for ourselves how to live.