Eiraku-tei (Emperor Yongle) ordered Ko Ko and others to collect Do school literature and compile "The Complete Four Books," "The Complete Book of Five Classics," and "The Complete Book of Nature and the Law," which were like encyclopedias, and distribute them widely in schools.
永楽帝は胡広らに道学の文献を収集させて百科事典的な『四書大全』『五経大全』『性理大全』を編纂させ、広く学校に頒布した。