柏拉图的存在论思想制约并推动着他的美学思想的变化。柏拉图的存在论经历了这样一个过程:从早期的“相论”,到中期对“相论”的批判而建立起来的“能力论”、“通种论”以及最后具有综合意味的“实在论”。其存在论的每一次发展都带动他的美学思想产生变化,存在论及其变化是柏拉图纷繁多样的美学思想的内在根据与发展变化的直接动因。
Platonic existentialism bound and drove the change of his aesthetics. His existentialism went through the following course of development: it started with "the theory of Phase" in the early days, continuing in the middle period by criticizing the former theory and introducing "the theory of capacity" and "the theory of gener- al species" and ending with "the theory of existence" of some comprehensive sense. Every step of development of his existentialism would cause a change in his aesthetics. Thus Platonic existentialism and its change were the inner basis and direct motivation for his complicated aesthetic ideas.