This paper investigates the utopia, or the ideal society of Ogyu Sorai(荻生徂徠, 1666~1728) through his Seidan(政談). The writer considers the image of Sorai’s ideal society in terms of the ruler’s state, figure of the governed people and the method of rule, as follows. Firstly, about the ruler’s state, Sorai suggested that the ideal ruler has unlimited absolute power, and no moral obligation is imposed.
Secondly, on the figure of the governed people in the ideal society, Sorai was especially interested in making the people comfortable. He discussed how to control the inhabitants of Edo city in Seidan, Volumn 1. In the book, he pointed out that too many people had flowed into Edo, the order was collapsing, and various crimes were increasing. With this in mind, he presented various countermeasures. Lastly, Sorai asserted the governance by system, or ‘the rule by rites(禮治)’. He, in the Seidan, pointed out that the most big problem was that there was not system at that time in the Japan society.