The Doctrine of the Mean is an important work on education theories in ancient China, discussing a set of theory and means to enhance a person's moral level, which was called for by Confucius and advanced by Zisi, including main ideas, theoretical basics, contents, main principles, test standards, and important means of practice. This book includes the original Chinese verses and the excellent English translation by the famous English Sinologist James Legge, enabling the read to enjoy this charming classic from two points of view.

《中庸》是中国古代讨论教育理论的重要论著，是由孔子提倡、子思阐发的提高人的基本道德素质达到太平和合的一整套理论与方法，包括其主题思想、理论基础、具体内容、主要原则、检验标准、知行方法、重要途径等方面的内容。