The difference recognized in Plato and Aristotle between the divine spark and the appetitive and perceptual parts of human nature was now emphasized.
"The Approach to Philosophy"
Ralph Barton Perry
If reason be the proper "ruling part," the first step in the moral life is the subordination of the appetitive nature and the enthronement of reason.
"The Approach to Philosophy"
Ralph Barton Perry
There is one principle with which, as we were saying, a man learns, another with which he is angry; the third, having many forms, has no special name, but is denoted by the general term appetitive, from the extraordinary strength and vehemence of the desires of eating and drinking and the other sensual appetites which are the main elements of it; also money-loving, because such desires are generally satisfied by the help of money.
"Plato's Republic"
Plato