Plato's understanding of passion

What would Buddhists say in response to the statement by Plato in The Republic Book IV : > And are there not many other cases in which we observe that when a > man's desires violently prevail over his reason, he reviles himself, > and is angry at the violence within him, and that in this struggle, > which is like the struggle of factions in a State, his spirit is on > the side of his reason; > You remember that passion or spirit appeared at first sight to be a > kind of desire, but now we should say quite the contrary; for in the > conflict of the soul, spirit (passion) is arrayed on the side of the > rational principle (reason). I have some ideas but I would like some other opinions. I'm primarily interested in the second paragraph, and not so much regarding the concept of soul. Just to clear up my assumption, I equate reason to be the same as Buddhist concept of intellect. It seems true, but is it just morality? Even morality is reason no?