[Liang Longzhang, the famous neoteric physician of the south of the Five Ridges].

Liang Longzhang, a famous neoteric physician in Guangdong province, wrote Bian zheng qiu zhen (Seeking Truth from Differentiation of Symptoms and Signs) and studied medicine carefully and thoroughly. He once was employed by a British company and often went to Southeast Asia to treat the illness of royal members, so he was famous both in China and abroad. He was active in medical charitable work in Guangdong and Hongkong, and tried his best to help the poor. In the overflowed plague of Guangdong, he created "Yi shu yun qi fang lun" (Theory of Recipes Based on Mathematics of Books of Changes and the Circuit Phases and Six Climatic Factors) to save the patients and achieved remarkable effects. In addition, he appealed the government to reform after comparing the medical system of Chinese and western, and was a physician with advanced idea.