1917年1月，蔡元培任北京大学校长后，针对旧的封建教育传统，“循自由思想原则，取兼容并包主义”，为进步思想的传播创造了有利条件，使北大成为新文化运动的中心。图为《北大钟声》（油画）。1911年，中国资产阶级民主革命派发动的辛亥革命虽然推翻了清王朝的封建专制统治， In January 1917, after Cai Yuanpei became the president of Peking University, in response to the old tradition of feudal education, “following the principle of freedom of thought and taking inclusive and inclusiveism” created favorable conditions for the dissemination of progressive ideas and made Peking University the center of the new cultural movement. The picture shows Peking Bells (oil painting). Although the 1911 Revolution launched by the Chinese bourgeois democratic revolution in 1911 overthrew the feudal autocratic rule of the Qing Dynasty,