Chéng Yí 
		Cheng Yi (1033-1107), Song neo-Confucian scholar
		 
		
		
		
		
			 
		
				
		
			Lǐ xué 
		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])
		 
		
		
		
		
			 
		
				
		
			Chéng mén lì xuě 
		lit. the snow piles up at Cheng Yi's door (idiom)
fig. deep reverence for one's master