Ask an expert to have a look. Who wrote this calligraphy work and whose calligrapher is it? What is the popularity of this calligrapher? thank you

Content: Good intentions prolong life. The author is for literature.

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literature

Yu Wen, whose real name is Zi Min, male, 1946, is from Laixi, Qingdao. 1968 graduated from the Department of Chinese Painting of Nanjing Art College, and is good at freehand brushwork of flowers and birds. Simple composition, fresh and bright style, unconventional. In recent years, he is especially good at painting bamboo, with strange painting methods, great momentum, vitality and appeal to both refined and popular tastes. Known as the contemporary "Bamboo King of China" by people in the industry. His calligraphy works are profound and varied, and are as famous as painting. He is currently a member of China Artists Association, a member of China Calligraphers Association, a national first-class artist, a creative member of China Art Research Institute of the Ministry of Culture, and the president of Shandong Coastal Painting and Calligraphy Research Institute, enjoying special government allowance from the State Council.