The first argument against the ?soul harmony? theory in the Eudemus

In his dialogue Eudemus Aristotle develops two arguments against the "soul harmony" theory as a development of the criticism inherited from Plato. The first of these does not appear in the Phaedo, nor does it reoccur among the arguments that Aristotle later uses in De anima. Such singularity of the argument is accompanied by the interpretive difficulty it poses, as often highlighted by contemporary criticism. Our article intends to show that this original argument of the juvenile period is based on the "partial or defective deprivations" of the works of maturity, within the context of the "deprivations of active power".