I didn't know what to do until I got a superficial understanding on the paper-it came from Lu You's godson's poem "Reading at Winter Night", which was written at the end of the fifth year of Ningzong Zhuangyuan (A.D. 1 199). The poet talked about his views on knowledge acquisition from two aspects: one is to spend effort, and the other is to "practice". The ideas expressed in the poem are not only the experience of reading on a winter night, but also the summary of the poet's diligent study.
Lu You's Reading on a Winter Night and Zi Yue
The ancients learned nothing,
Young people never grow old.
What you get on paper is superficial,
Never knew it needed doing.