Cheng Mun Li Xue, "this story, saying that the Song Dynasty scholars, and at the Cheng Hao Cheng Yi Zuo apprentice Qiujiao thing.
2-way is the Luoyang Yichuan people, with a famous Confucian scholar during the Song dynasty. Two-way theory, and later for the continuation and development of Zhu Xi, the Bank called "Neo-school." Yang Shi, Zuo, to study two-way, very respectful. Yang Yu duo, originally as a teacher Cheng Hao Cheng Hao's death, they are 40 years old and had been admitted to the Scholars, but they have to go to Cheng Yi continue their education. The story took place in their first to the Songyang Academy, door Meet Cheng Yi's day.
According to legend, one day, when Yang, Zuo came Songyang Academy audience with Cheng Yi, are met old gentleman close their eyes meditatively, sitting off to sleep. Cheng Yi knowing that there are two guests, and he wishes to speak without moving disregarded. Yang, You two, Mr. Pada Rao rest, had to respectfully, truly yours until lap, silently waiting for he opened his eyes to. So waiting for Hao Bantian, Cheng Yi, such as Smith was awakened, met with Yang, travel, pretend surprised said: "ah! Ah! Yin generation early in this call!" Means that the two of you are still unable to leave here ah. That is the cold winter day, I do not know when, it started to snow. Outside the snow, there is more than one foot deep.
This story, called "Cheng Li Xue door." In the Song Dynasty scholars in widely circulated, and later described as respected teachers, sincerely ask for help, people will often refer to this allusion, and sentence idioms
