I wrote this article in Chongqing forty years ago. At that time, my student Li Mangui was editing a women's journal, and she gave me this topic. At that time, people often asked me to "do something I don't want to do, say something I don't want to say, and meet people I don't like to see", but it was hard for me to force myself to do that, so I took this opportunity to give full play to my...