In the tripartite psychology of the Republic, Plato characterizes the “spirited” part of the soul as the “ally of reason”: like the auxiliaries of the just city, whose distinctive job is to support the policies and judgments passed down by the rulers, spirit’s distinctive “job” in the soul is to support and defend the practical decisions and commands of the reasoning part. This is to include not only defense against external enemies who might interfere with those commands, but also, and (...) most importantly, defense against unruly appetites within the individual’s own soul.1 Spirit, according to this picture, is by nature reason’s faithful auxiliary in the soul, while appetite is always a potential enemy to be watched .. (shrink)

I offer a novel analysis of the relations between Aristotle's three species of desire – appetite, temper, and wish – and the three things he says in EN 2.3 lead to pursuit – the pleasant, the beneficial, and the noble. It has long been tempting to think that these trios line up with one another in some way, ideally relating their members in one-to-one fashion. One account, by John Cooper, has gathered prominent adherents, but other authors, notably Giles Pearson, have (...) argued we should give up on even trying to correlate the two trios. I attempt to show that the two trios do relate in interesting ways, but not in a way that correlates their members in a one-to-one fashion. Instead, I argue that both appetite and temper are ultimately for the pleasant, while all things that an agent takes as objects of wish are conceived of as either pleasant, beneficial, or noble. This account conflicts with a dominant understanding of the species of desire as differentiated by their objects. I defend the view by showing that there is a second criterion for differentiating the species of desire. (shrink)