Wen Yi Ming Dow. The literary thought of Han Yu's On Poetry is: Ming Dow should be used in writing, and his words should be measured, reasonable, unfair and measured. Han Yu (65438+768-February 25, 824), a native of Mengzhou, Henan Province, claimed to be "County King Changli" and was called "Han Changli" and "Mr. Changli". Officials, writers, thinkers, philosophers, politicians and educators in the middle Tang Dynasty.