[125] But all these statements are uttered in a metaphorical form, and contain an allegorical meaning. For as in an animal the head is the first and best part, and the tail the last and worst part, or rather no part at all, inasmuch as it does not complete the number of the limbs, being only a broom to sweep away what flies against it; so in the same manner what is said here is that the virtuous man shall be the head of the human race whether he be a single man or a whole people. And that all others, being as it were parts of the body, are only vivified by the powers existing in the head and superior portions of the body.