佛祖統紀 52.68

52.68

In the Zhou, Zengzi, named Shen, studied under Confucius and authored the Classic of Filial Piety. Zisi was the grandson of Confucius; named Ji, he studied under Zengzi and authored the Doctrine of the Mean. Mencius, named Ke, studied under Zisi and authored a work of seven chapters; he set forth the Way of Yao and Shun, refuted Yang Zhu and Mozi, and argued that human nature is inherently good. Xunqing, named Kuang, authored a work entitled Xunzi; he exalted the true king and demoted the hegemon, and argued that human nature is inherently evil.