Thomas Aquinas

“ Further, the theological virtues are so called because they direct us to God, Who is the first beginning and last end of all things. But by the very nature of his reason and will, man is directed to his first beginning and last end. ”

“ The intellect requires intelligible species whereby to understand: consequently there is need of a natural habit in addition to the power. But the very nature of the will suffices for it to be directed naturally to the end, both as to the intention of the end and as to its conformity with the end. But the nature of the power is insufficient in either of these respects, for the will to be directed to things that are above its nature. ”

“ Further, the theological virtues are more perfect than the intellectual and moral virtues. Now faith is not reckoned among the intellectual virtues, but is something less than a virtue, since it is imperfect knowledge. Likewise hope is not reckoned among the moral virtues, but is something less than a virtue, since it is a passion. Much less therefore should they be reckoned as theological virtues. ”

“ Now love is charity, which is a theological virtue. Therefore the moral virtues are not distinct from the theological.
On the contrary, That which is above man's nature is distinct from that which is according to his nature. But the theological virtues are above man's nature ”

“ When, then, it is stated that every virtue is the order of love, this can be understood either of love in the general sense, or of the love of charity. If it be understood of love, commonly so called, then each virtue is stated to be the order of love, in so far as each cardinal virtue requires ordinate emotions ”

“ A certain nature may be ascribed to a certain thing in two ways. First, essentially: and thus these theological virtues surpass the nature of man. Secondly, by participation, as kindled wood partakes of the nature of fire: and thus, after a fashion, man becomes a partaker of the Divine Nature, as stated above: so that these virtues are proportionate to man in respect of the Nature of which he is made a partaker. ”