 According to the mirror thesis an evil person is the mirror-image of a moral saint. Several theorists who write about evil personhood endorse this thesis and use it to argue for their theories (Barry 2009; 2013; Haybron 2002b). For instance, Daniel Haybron argues that one reason to accept his contention that evil persons are wholly (or almost wholly) unaligned with the good is that it fits well with the intuition that moral saints are “perfectly, or near-perfectly, aligned with the good” (Haybron 2002b, 274. This argument makes an implicit appeal to the mirror thesis.