 Near the end of the Warring States Period, new assumptions about cosmology and metaphysics appeared that dominated the Han dynasty and profoundly influenced the development of Chinese thought. This new view has come to be known as “correlative cosmology,” but it was not a single cosmology as much as several cosmological principles (Brindley 2012,  2–3).[8]  Its core elements are various schema for sorting phenomena into kinds (lei 類) and a theory of causality based on stimulus and response (ganying 感應). These elements appear together in a paradigmatic statement from the Lüshi chunqiu: 