Source : CEDICT

School of Principle/Neo-Confucian Rationalistic School (from Song to mid-Qing times, c. 1000-1750, typified by the teachings of Cheng Hao 程顥|程颢[Cheng2 Hao4], Cheng Yi 程頤|程颐[Cheng2 Yi2] and Zhu Xi 朱熹|朱熹[Zhu1 xi1])