 Again commentaries differ. A complex and fertile debate continues to worry over how perceptual error may undermine mental health or moral integrity (Nehamas 1982, Moss 2007). Part of the answer comes from Books 8–9, which sketch four character types graded from best to worst. These are eidê “kinds” of soul in a different sense, not the species of motives within a soul but the species that souls may be sorted into. This sorting deserves to play a larger role than it has in the discussion of imitation.