The basis of tragedy is man's helplessness against disease, war and death; the basis of comedy is man's helplessness against vanity (the vanity of love, greed, lust, power).
Bio: Yamamoto Tsunetomo, also read Yamamoto Jōchō, was a samurai of the Saga Domain in Hizen Province under his lord Nabeshima Mitsushige. For thirty years Yamamoto devoted his life to the service of his lord and clan.