Today we don’t know how to live out the inner spirit of people. Especially I don’t know that the most important thing for people is to be free. The most important purpose of reading Xianshu is to regain people’s free nature and find a free world. Let me first talk about the understanding of ordinary Chinese people. Xianshu is a “useless book”. Books that have nothing to do with work and cannot bring us practical benefits are Xianshu. When I used to teach philosophy, one of the most asked questions by students was, what is the use of philosophy? What I say is useless. Philosophy is a “useless knowledge”. All…