And because of the third nature, that is, of the plants, Man has a love for a certain food, not inasmuch as it affects the senses, but in so much as it is nutritious; and that particular food does the work of that most perfect Nature, while certain other food, dissimilar, acts but imperfectly. And therefore we see that certain food will make men handsome, and strong-limbed, and very brightly coloured, and certain other food will do the opposite of this. And by the fourth nature, of the animals, that is, the sensitive, Man has the other love, by which he loves according to the sensible appearance, like the beasts; and this love in Man especially has need of control, because of its excessive operation in the delights given, especially through sight and touch. And because of the fifth and last nature, which is the true Human Nature, and, to use a better phrase, the Angelic, namely, the Rational, Man has by it the Love of Truth and Virtue; and from this Love is born true and perfect friendship from the honest intercourse of which the Philosopher speaks in the eighth book of the Ethics, when he treats of Friendship. Wherefore, since this nature is termed Mind, as is proved above, I spoke of Love as discoursing in my Mind in order to explain that this Love was the Friendship which is born of that most noble nature, that is, of Truth and Virtue, and to exclude each false opinion, by which my Love might be suspected to spring from pleasure of the Senses. I then say, "With constant pleasure," to make people understand its continuance and its fervour. And I say that it often whispers "Things over which the intellect may stray." And I speak truth, because my thoughts, when reasoning of her, often sought to draw conclusions of her, which I could not comprehend, and I was alarmed, so that I seemed almost like one dazed, even as he who, looking with the eye along a direct line, sees first the nearest things clearly; then, proceeding, it sees them less clearly; then, further on, doubtfully; then, proceeding an immense way, the sight is divided from the object, and sees nothing. And this is one unspeakable thing of that which I have taken for a theme; and consequently I relate the other when I say: His words make music of so sweet a kind That the Soul hears and feels, and cries, Ah, me, That I want power to tell what thus I see! And because I know not how to tell it, I say that my soul laments, saying, "Ah, me, that I want power." And this is the other unspeakable thing, that the tongue is not a complete and perfect follower of all that the intellect sees. And I say, "That the Soul hears and feels;" hearing, as to the words, and feeling, as to the sweetness of the sound. CHAPTER IV. Now that the two ineffable parts of this matter have been discussed, we must proceed to discuss words that describe my insufficiency.