Abstract
The Book IV of Plato's Republic pictures us a soul in the condition of a good soul. As the rational element (tò logistikón) rules wisely and is able to deliberate the good, the spirited element (tò thymoidês) assists and performs with courage the resolutions of the former element, maintaining a straight opinion. Finally, the appetitive element (tò epithymêtikòn) is set under control, obey…