Cai Yuanpei's special exhibition introduction: The special exhibition "Cai Yuanpei and the Red Mansion of Peking University" describes in detail his origins with the Red Mansion, including his advocacy of "inclusiveness" of various ideas and academic democracy after he was appointed president of Peking University. Under his chairmanship, representatives of the New Culture Movement such as Chen Duxiu, Li Dazhao, Hu Shi, and Lu Xun also came to Peking University to teach.