11 Again, the irrational animals have their weapons in their own body; thus, the ox has his horns; the wild boar his tusks; the lion his claws. But God has not furnished the nature of my body with weapons, but has made these to be extraneous to it, for the purpose of showing that man is a gentle animal; and that I have not always occasion to use my weapons, for from time to time I lay these aside, and from time to time resume them. In order then that I might be free and unfettered in this matter, not being at all times compelled to carry my weapons, He has made these to be separate from my nature.
For it is not only in our possessing a rational nature that we surpass the brutes, but we also excel them in body. For God has made this to correspond with the soul's nobility, and fitted to execute its commands. He has not, indeed, made the body such as it is, without reason; but such as it ought to be, as having to minister to a rational soul; so that if it were not such as it is, the operations of the soul would be greatly impeded: and this is manifest from diseases. For if this nice adjustment of the body be diverted from its proper condition in ever so small a degree, many of the soul's energies are impeded; as, for instance, if the brain should become too hot, or too cold.
So that from the body it is easy to see much of the Divine Providence, not only because He made it at first better than it is at present; nor because even now He has changed it for a useful purpose, but also because He will raise it again to much greater glory.
Source: Homilies on the Statues (New Advent)