3
These principles at first Aristotle seems most to have relied upon, as plainly enough appears from what he has written. Though afterwards he confounded the irascible and concupiscible together, by joining the one to the other, as if anger were nothing but a thirst and desire of revenge. However, to the last he constantly maintained that the sensual and irrational was wholly distinct from the intellectual and rational part of the soul. Not that it is so absolutely devoid of reason as those faculties of the soul which are sensitive, nutritive, and vegetative, and are common to us with brute beasts and plants; for these are always deaf to the voice of reason and incapable of it, and may in some sort be said to derive themselves from flesh and blood, and to be inseparably attached to the body and devoted to the service thereof; but the other sensual part, subject to the sudden efforts of the passions and destitute of any reason of its own, is yet nevertheless naturally adapted to hear and obey the intellect and judgment, to have regard to it, and to submit itself to be regulated and ordered according the rules and precepts thereof, unless it happen to be utterly corrupted and vitiated by pleasure, which is deaf to all instruction, and by a luxurious way of living.
