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Two-school model vs. three-school model

In contrast to this two-branch model, the New Confucian Mou Zongsan argues that there existed a third branch of learning, the Hu-Liu school, based on the teachings of Hu Hong (Hu Wufeng, 1106–1161) and Liu Zongzhou (Liu Jishan, 1578–1645). The significance of this third branch, according to Mou, was that they represented the direct lineage of the pioneers of neo-Confucianism, Zhou Dunyi, Zhang Zai and Cheng Hao. Moreover, this third Hu-Liu school and the second Lu–Wang school, combined, form the true mainstream of neo-Confucianism instead of the Cheng–Zhu school. The mainstream represented a return to the teachings of Confucius, Mengzi, the Doctrine of the Mean and the Commentaries of the Book of Changes. The Cheng–Zhu school was therefore only a minority branch based on the Great Learning and mistakenly emphasized intellectual studies over the study of sagehood.