receive the blows inflicted upon the head; but that these membranes first encountering them, might free it from all injury, and preserve it unwounded. Moreover, that the bone which covers the brain is not a single and continuous one, but has many sutures on every side, is a circumstance which contributes much to its security. For a ventilation of the vapours that surround it may easily take place outward through these sutures, so as to prevent it from being suffocated;1486 and if a blow should be inflicted upon it, on any particular point, the damage does not extend to the whole. For if the bone had been one and continuous, the stroke even when it fell upon one part, only, would have injured the whole; but now, by its being divided into many parts, this can never happen. For if one part should chance to be wounded, only the bone that is situated near that part receives injury, but all the rest remain unhurt; the continuity of the stroke being intercepted by the division of the bones, and being unable to extend itself to the adjacent parts. By reason of this God hath constructed a covering for the brain of many bones; and just as when one builds a house, he lays on a roof, and tiles upon the upper part, so God hath placed these bones above upon the head, and hath provided that the hairs should shoot forth, and serve as a kind of cap for it. 9. The very same thing also He hath done with regard to the heart. For inasmuch as the heart has preeminence over all the members in our body, and that the supreme power over our whole life is entrusted to it, and death happens when it receives but a slight blow; He hath fenced it about on every side with stiff and hard bones, surrounding it by the protection of the breast-bone1487 before, and the blade-bones1488 behind. And what He did with respect to the membranes of the brain, He hath done in this instance also. For in order that it might not be rubbed and pained in striking against the hard bones which encompass it, in the throbbing and quick pulsation to which it is subject in anger and similar affections, He both 416 interposed many membranes there, and placed the lungs by the side of it to act the part of a soft bed to these pulsations, so that the heart may break its force on these without sustaining injury or distress. But why do I speak of the heart, and of the brain, when if any one will investigate even the very nails, he will see the manifold wisdom of God displayed in these; as well by their form, as by their substance and position. I might also have mentioned why our fingers are not all equal, and many other particulars besides; but to those who are inclined to attend, the wisdom of God Who created us, will be sufficiently clear from what has been said. 1486 This is an unfounded notion. What follows is true, since a fracture usually stops at a suture (or joining) of the skull, as a crack in glass does at a cross cut of the diamond. τὸ βρ™γμα, above, is strictly the parietal bone. See also Hom. V. fin. on Ep. to Heb. 1487 θώρακος. 1488 ὠμοπλ€ταις. 601 Homily XI