texture / grain (of wood) / inner essence / intrinsic order / reason / logic / truth / science / natural science (esp. physics) / to manage / to pay attention to / to run (affairs) / to handle / to put in order / to tidy up
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[Zhu1 xi1])