Sun Zixi is a very successful oil painter and art educator. He has long been a professor at the Central Academy of Fine Arts and has been one of the leaders of the Central Academy of Fine Arts. He was born in Longkou City, Shandong Province in 1929, and later participated in the War of Resistance Against Japan. He has participated in the work of culture and art in the army since liberation. He graduated from the Central Academy of Fine Arts in 1959 and stayed in school for teaching. This work is about two soldiers learning together. Old soldier joined the army in the countryside, fought all the way, and then studied again. He is grasping the pen very clumsily, like taking a piece of wood, showing his difficulty in writing. Because of the younger age, the young soldier finds learning easier with an accurate gesture of holding the pen. The personalities of the two men are fully embodied through the pen. In order to study together for the common goal, these two gestures contrasted with the wrinkles of the old soldier's face and the naivety of the new soldier's face, which fully embodied Sun Zixi's ability to capture the details of life.