Three: Confucius, Tao Xingzhi and Su. Among them, Tao Xingzhi's life was spent in the autumn when the people were in poverty, the country was in great trouble and the nation was in danger. He shared weal and woe with the working people, was close to the people, devoted himself to people's education and the struggle for national liberation and democracy in China, and made indelible contributions. Mr. Tao's works are rich in content and detailed in discussion, which is closely related to the current socialist pedagogy. He can be called a "generation giant" in the history of modern education in China. Tao Xingzhi belongs not only to China, but also to the world.