The order of the evolution of human thought is from concrete to abstract, from graphics to language. People who know a little bit about the history of cultural relics know that only graphics on early civilization and its artifacts, such as prehistoric murals around the world, such as those on Banpo pottery Fish pattern, human danger, etc. There is no text because the language ability is not developed. After the language ability is developed, there is text and human civilization is truly out of the original stage. The evolution of the text itself also follows the same process. The original was graphics and it was not separated. Figurative, covering power is very good. B. Kun, slowly leaving the graphic stage and truly becoming a text, indicates that people's language skills are getting deeper and deeper, and their thinking is becoming more and more independent. The topics this Wenyu talks about are:. ['The consciousness of studying the history of cultural relics.', 'Main functions of language.', 'c. Manifestations of prehistoric civilization.', 'The evolution of human thinking.']