《理想国》是举世公认的一部“永不过时的经典,本身虽是一部专论教育与政治的哲学书,但却具有某种诗和说教的性质,其中采用的诸多神话比喻和艺术化的对话文体,均表现出一种古老的、特殊的智慧。本文着力于探索书中的日喻,以此来解说柏拉图的善式,并总结善与美的关系,开拓自我哲学思维。 The ”ideal nation“ is universally recognized as a ”never-out-going classic. It is a philosophical book on education and politics in its own right, but it possesses some kind of poetic and preaching nature. Many of the mythological metaphors and Artistic conversational style all showed an ancient and special wisdom.This paper focuses on the exploration of the Japanese metaphor in the book in order to explain the good style of Plato and to sum up the relationship between good and the beautiful and develop the philosophy of self.