Jean Piaget (1896–1980) graduated in natural history and philosophy at the University of Neuchatel, Switzerland.




Piaget’s theory of cognitive development had a profound influence on psychology, especially the understanding of children’s intellectual growth. His research contributed to the growth of developmental psychology, cognitive psychology, genetic epistemology, and education reform. Albert Einstein once described Piaget’s observations on children’s intellectual growth and thought processes as a discovery “so simple that only a genius could have thought of it.”