This paper considers the confrontation with Buddhism and Confucianism in Takuan’s 沢庵 philosophy．He borrowed Confucian terminology in the context of discussions of ontological problems, and developed his ideas in a Confucian context．However, Takuan used Buddhist terminology as well as Confucian vocabulary in discussing the problem of the nature of mind, and based his ideas on Buddhism．In other words, he expressed Buddhist thought using Confucian terminology.
