Du Fu (712 - 770) was one of the great poets of the Tang Dynasty. His poetry style was vigorous and unconstrained, reflecting the various social ills and the sufferings of the people at that time. Du Fu's representative works include Climbing High, Looking at Spring, Quatrains, and Looking at Mountains. Du Fu created a large number of poems in his life, and there are more than 1000 of them. His poems had a wide range of content and varied forms, including five-character quatrains, seven-character quatrains and regular poems. His works reflected the dark side of the Tang Dynasty society and the sufferings of the people, but also showed his loyalty and love for the country and the people. Du Fu's poems had profound thoughts and high artistic value, and he was known as the "Sage of Poetry". His representative work, Ascending, was hailed as a classic seven-character quatrain of the Tang Dynasty and is still widely read today.