dōng yè dú shū shì zi yù冬夜读书示子聿
gǔ rén xué wèn wú yí lì, shào zhuàng gōng fū lǎo shǐ chéng.古人学问无遗力，少壮工夫老始成。zhǐ shàng de lái zhōng jué qiǎn, jué zhī cǐ shì yào gōng xíng.纸上得来终觉浅，绝知此事要躬行。
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