First of all, Cao Pi criticized the ethos of "scholars despise each other" and thought that "scholars despise each other since ancient times." After citing an example to illustrate the literary case of "scholars despise each other", he analyzed the causes of this trend and said: "Madam is good at self-observation, but literature is not integrated, so it is difficult for her to prepare for goodness, so she has her own strengths and weaknesses. China has a saying:' If you have a bad broom at home, give it to your daughter. I can't see myself. It can be said that Cao Pi's criticism of the ethos of "belittling scholars" is quite profound and realistic.
Secondly, Cao Pi opposed the idea of attaching importance to the past and neglecting the present, and criticized the bad tendency of "attaching importance to the far and neglecting the near, and backing the truth as a sound" at that time. The reason for this ethos is that the investigation is not in place and blind superstition. Through criticism, he actually affirmed that modern people are superior to the ancients and affirmed the progress and evolution of literature, which is an idea of literary evolution. It is certainly not as good as it used to be, and it was also a rare insight at that time.