Gustav Fechner
Fechner, along with Wilhelm Wundt and Hermann von Helmholtz, is recognized as one of the founders of modern experimental psychology. His clearest contribution was the demonstration that because the mind was susceptible to measurement and mathematical treatment, psychology had the potential to become a quantified science. Theorists such as Immanuel Kant had long stated that this was impossible, and that therefore, a science of psychology was also impossible.
Zhu Zhixian
Zhu Zhixian (; 31 December 1908 – 5 March 1991) was a psychologist, educator, and professor, known today as one of the founding figures of modern psychology in China. He graduated from National Central University, and then worked as a researcher in the University of Tokyo in Japan. During the Second Sino-Japanese War, he returned to China and worked in Jinagsu College of Education, Sichuan College of Education, Sun Yat-sen University and Dade College of Hong Kong. After the founding of the People's Republic of China, Zhu was responsible for the school textbooks in Ministry of Education, and then worked as associate editor in People's Education Press. In 1951, he was invited to work in Beijing Normal University. He was the chairman of Education Department, director of Institute of Child psychology, and editor of Journal of Psychological Development and Education. Zhu was one of the first doctoral tutors, and cultivated China's first doctor in psychology, Lin Chongde.