1. You’ll have to say it after you’ve done it, but you don’t necessarily have to say it after you’ve done it.

2. ①Written "Miscellaneous Treatises on Tang Poetry". ②Completed the "Compendium of Chu Ci". ③Compiled "New Meaning of Classics". (As long as the meaning is correct)

3. (Selected sentence) The late night light is his companion, because it opens the way to light, "the four walls are bleached."

(Reason) The quote "bleached four walls" is intended to express the comfortable and comfortable scene of Mr. Wen Yiduo engaged in academic research late at night, which is consistent with the interest of "opening the road to light". (The answer is not unique)

4. Give our declining nation a cultural prescription for relief. (Or: eat up and digest all the cultural history of our Chinese nation for thousands of years.)

5. The words referring to Mr. Wen Yiduo are arranged neatly.

6． (Example) An inch of time is worth an inch of gold, but an inch of gold cannot buy an inch of time. ? (The answer is not unique)