Jean Piaget (9 August 1896 – 16 September 1980) was a Swiss philosopher and natural scientist, and is well known for his work studying children. His theory of cognitive development and epistemological view is together called "genetic epistemology."
He laid great importance to the education of children that made him declare in 1934 in his role as Director of the International Bureau of Education that ‘only education is capable of saving our societies from possible collapse, whether violent, or gradual’.
In 1955 he created the International Centre for Genetic Epistemology in Geneva and directed it until 1980. According to Ernst von Glasersfeld, Jean Piaget is "the great pioneer of the constructivist theory of knowing."