II. To the Principal Argument

15. To the argument [n.2] one must say that the acquired moral virtues perfect the soul in ordering it to some light that can be called prudence, and prudence does not perfect in ordering to any light other than that of the agent intellect; yet prudence is a virtue. So it is in the issue at hand: the supernatural virtues perfect the soul in ordering to the virtue that is charity, and charity perfects further in ordering to the supernatural end.