[184] And is not this reasonable? for it follows of necessity that the virtues of God must be pure and unmixed, since God is not a compound being, inasmuch as he is a single nature; on the other hand, the virtues of men must be mixed with some alloy, since we ourselves are compounds, the divine and human nature being combined in us, and adapted together according to the principles of perfect music; and that which is composed of many separate things has a natural attraction to each of its parts.