It comes from "Shang Li Yong" written by the Tang Dynasty poet Li Bai. The original text of the poem is as follows:
The roc rises with the wind in one day and soars ninety thousand miles.
If the wind stops and comes down, it can still blow away the water.
Everyone in the world sneered when they saw my extraordinary tune and heard my eloquent words.
Xuan's father is still afraid of future generations, but his husband cannot be young.
The vernacular meaning is that the roc will one day fly with the wind. With the force of the wind, it went straight up to the sky. If the wind stops, the roc flies down. It can also raise the water in rivers and seas. People in the world see me always singing a high tune. They all sneered when they heard my bold words. Confucius also said, "The next generation is to be feared." It is not impossible for young people to be men.
Extended information:
Creative background
This poem is the work of Li Bai in his youth. Li Yong served as the governor of Yuzhou (today's Chongqing City) around the seventh year (719) to the ninth year (721) of Emperor Xuanzong of the Tang Dynasty. When Li Bai traveled to Yuzhou to visit Li Yong, Li Yong was displeased because he did not adhere to customary etiquette and spoke eloquently about kings and hegemons. Historically, Li Yong was said to be "quite conceited" ("Old Book of Tang Dynasty: Biography of Li Yong"). He was proud of his good reputation and had a reserved attitude towards young and underachieving people.
Li Bai was dissatisfied with this, and wrote this rather unkind poem "Shang Li Yong" when he was leaving, in return. Anqi's "Chronicle of Li Bai" dates this poem to the 14th year of Kaiyuan (726). Some predecessors suspected that it was not Li Bai's author. For example, Xiao Shiyun from the Yuan Dynasty said: "This piece does not seem to be written by Taibai." There are also those who believe that it is Li Bai's work and identify it. See "Collection and Commentary of Li Bai's Complete Works" edited by Zhan Yong.
Baidu Encyclopedia-Li Yong