Reading could change a person's temperament and realm to a certain extent. By reading different types of books, people could learn different knowledge, experiences, and insights to improve their cognitive level, thinking ability, and humanity. These experiences and insights could affect a person's way of thinking, attitude, and behavior, and thus affect their temperament and performance. Reading books could also help people expand their horizons, broaden their minds, and improve their self-awareness and self-transcendence. Through reading books on history, philosophy, literature, and other fields, people could understand the development process and profound nature of human civilization, and thus better understand themselves and the world. In the process of reading, people could also discover their own potential, explore the depths of their hearts, and improve their realm and cultivation. However, reading books could not completely change a person's temperament and realm. A person's temperament and realm were influenced by many factors, such as personal experience, social environment, interpersonal relationships, etc. In addition, everyone's cognitive level and thinking ability were limited. The effect of reading could also vary from person to person. Therefore, reading could improve one's temperament and realm to a certain extent, but it was not omnipotent. What is important is that we should enrich our knowledge and experience in many ways, constantly improve our abilities and qualities, and create a healthier, more confident and independent self-image.