The 100th Anniversary of China’ s Water Conservancy Collection (Volume I): 100 Greatest Scientists shows readers the style of modern Chinese hydraulic scientists over the past century, including Li Yizhi, Zheng Zhaojing, and Wang Huzhen, who had a thorough knowledge of both the western and Chinese world and were well versed in the past and the present. They aspired to regulate and develop water, built dams, power stations, ports, docks, established irrigation systems, and dredged rivers and canals with their sweat and wisdom. They also have made extraordinary achievements in water conservancy, hydropower, water transportation, and other fields. Holding the belief that “ I do not need to be credited for the success, but I have to contribute to it,” modern Chinese hydraulic scientists earnestly practiced it by contributing to the public interest selflessly. They never stopped their pursuit of brightness regardless of the hardships they experienced, with the fire of their ideal of fighting for Chinese water conservancy undertakings constantly burning deeply inside their hearts.