  The next two sections attempt to historicize and reconcile these two histories, one philosophical and one scientific, by turning to the intellectual and social contexts for the development of science in China. The fourth section focuses on concepts shared by the practitioners and texts of early philosophy and science. The fifth section turns to an intellectual divergence between generalist and technical specialist knowledge through the categorization of texts in a chapter of the dynastic history of the Han dynasty (Han shu). The sixth section takes up the social context of the practitioners of the early sciences and their relations to philosophical texts and traditions. The last section surveys the early sciences, with specific interest in areas of close relationship between the sciences and Chinese philosophy, especially in the areas of cosmology, astronomy, mathematics and medicine.