Let it be granted that Buddhism has, e.g., in its logical literature, detailed canons and explicit rules of right reason that, amongst other things, ban inconsistency as irrational. This is the normative dimension of how people should think according to many major Buddhist authors. But do important Buddhist writers ever recognize any interesting or substantive role for inconsistency and forms of irrationality in their account of how people actually do think and act? The article takes as its point of departure a recurring theme in the writings of the 8th Century Indian Buddhist thinker, Śāntideva, who subjects his own behaviour and thought to minute scrutiny in argumentation with himself, only to be puzzled at his own seemingly irrational pe...