"The language is not surprising and endless" means "the language of poetry is not amazing and endless". This sentence comes from Du Fu's On the Value of Water on the River as the Sea in the Tang Dynasty, which is a seven-character poem. The original poem is: for the sake of humanity, words are not surprisingly endless. People are getting older and older, and writing poems is perfunctory. With flowers and birds in spring, there is no deep sadness in the past. I have a new clothes and a stockade by the river. I can fish leisurely. I have prepared a wooden raft to replace the boat in the river. I hope that Tao Yuanming, Xie Lingyun and other poetry masters will definitely chat with each other and have a tea party.
This poem expresses Du Fu's deliberate pursuit of poetic language and serious attitude towards literary creation, which is one of the important conditions for him to become a great poet.