On May 30, the main event for the 2025 National Science and Technology Workers' Day was held at the National Communication center for Science and Technology in Beijing. This event focused on promoting the spirit of scientists and centered around the precious collections of the China Scientists Museum. It highlighted the stories behind these collections and vividly showcased the contributions of generations of scientific and technological workers who embody the spirit of patriotism, innovation, pragmatism, dedication, collaboration, and education under the leadership of the Communist Party of China. Additionally, a donation and collection ceremony for the China Scientists Museum's collections took place at the event, where donation and collection certificates were presented to representatives of scientists, including Qian Qihu, and to relatives of scientists, such as Zou Zongping, the granddaughter of Li Siguang. (Photos: Chen Tao/GT)