On the eve of the May 4th Youth Day, the Youth League Committee of the Group organized its members to hold a thematic group class in the classroom on the third floor of Tianwei Company. The group class took the opportunity of celebrating the 60th anniversary of the cause of the expedition to heaven and welcomed the May 4th Movement and studied the culture of the expedition to heaven. Senior Wang Weichao, secretary of the Party branch of Tianwei Company, was specially invited to give a lecture. Wang Shuji described the 60-year history of the development and evolution of the cause of Zhengtian, his understanding of the spirit of Zhengtian, his feelings with Zhengtian, etc. As a youth army who once conquered the sky, he also came to the sky from a green youth, and forged an indissoluble bond with the older generation of people such as Liang Huanmu. Now he is nearly 60 years old and has struggled in the sky all his life. The teaching content is vivid, and he knows more about what young people need and is close to the facts, so that the members have a detailed understanding of the culture of the company, which has benefited everyone.