Neo-Confucianism, also known as Taoism, is the main school of philosophy in Song Dynasty. Neo-Confucianism is the most exquisite and complete theoretical system in ancient China, with far-reaching influence. The principle of Neo-Confucianism is moral theology, which has also become the legal basis of Confucian theocracy and kingship.
Neo-Confucianism, with Confucianism as the core, is compatible with Buddhist and Taoist philosophical theories, demonstrating the rationality and eternity of feudal ethics, which was adopted as the official philosophy in the Yuan Dynasty. Important Neo-Confucianists include Wu Zixu in the Northern Song Dynasty, Zhu, Lu Jiuyuan and Lin in the Southern Song Dynasty.