程chéng门mén立lì雪xuě

Literal: to stand in the snow at Cheng's gate
Figurative: To honor one's teacher and study with sincere devotion; reverent respect for one's master.

Where does 程门立雪 come from?

In the Song dynasty, the scholar Yang Shi, already a mature man of about forty, went with his fellow student You Zuo to consult their teacher, the famous Confucian master Cheng Yi. On arriving, they found the master sitting with his eyes closed, dozing. Out of respect, the two disciples did not wake him and waited standing in silence before his gate. By the time Cheng Yi awoke, the snow that had fallen outside the gate was already a foot deep. Ever since, the scene has stood for devotion to one's teacher and to learning.

Source (出处): 《宋史·杨时传》

How is 程门立雪 used? Two examples

为wèi了le向xiàng这zhè位wèi老lǎo先xiān生sheng求qiú教jiào，他tā不bù远yuǎn千qiān里lǐ登dēng门mén拜bài访fǎng，颇pō有yǒu程chéng门mén立lì雪xuě的de诚chéng意yì。
To seek this old master's instruction, he traveled a thousand li without minding the distance to call on him, with a sincerity worthy of one who waits in the snow at the teacher's gate.
我wǒ们men尊zūn敬jìng老lǎo师shī，更gèng要yào有yǒu程chéng门mén立lì雪xuě的de精jīng神shén，虚xū心xīn向xiàng他tā学xué习xí。
We respect our teacher, and even more we should have the spirit of one who waits reverently in the snow, learning from him with humility.

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