He argued for 'Logic of species,' or 'Philosophy of absolute intermediation,' and advocated metanoia in his last years, but some criticized that the Japan's war responsibility was made ambiguous in the complicated universalization of metanoetics.
「種の論理」もしくは、「絶対媒介の哲学」を唱え、晩年には懺悔道を説くも、日本の戦争責任を懺悔道という捉えようのない普遍の中に解消してしまったとの批判もある。