"Yet there has always in generous souls who have some tincture of philosophy, subsisted a curious kind of sympathy and yearning over the work of these generations of mainly disinterested scholars, who, whatever they were, were {121} thorough, and whatever they could not do, could think. And there have even, in these latter days, been some graceless ones who have asked whether the science of the nineteenth century, after an equal interval, will be of any more positive value--whether it will not have even less comparative interest than that which appertains to the scholasticism of the thirteenth." I have always considered, however, that the easiest way to show the modern student of science how supremely scientific in his temper was St. Thomas, is to quote for him the passage from that great teacher with regard to the Resurrection. In every way, that is typically modern. St. Thomas faces the question that after death men's bodies decay, the material of them is taken up and used in many other living beings, so that how can we dare to believe that we shall rise again on the last day with the same bodies that we now have? St. Thomas discusses this knotty problem straightforwardly and solves it more satisfactorily, even for all the knowledge that we have of it now, than has ever been done. "What does not bar numerical unity in a man while he lives on uninterruptedly clearly can be no bar to the identity of the arisen man with the man that was. In a man's body while he lives there are not only the same parts in respect of matter, but also in respect of species. In respect of matter there is a flux and reflux of parts. Still that fact does not bar the man's numerical unity {122} from the beginning to the end of his life. The form and species of the several parts continue throughout life, but the matter of the parts is dissolved by the natural heat, and new matter accrues through nourishment. Yet the man is not numerically different by the difference of his component parts at different ages, although it is true that the material composition of the man at one stage of his life is not his material composition at another. Addition is made from without to the stature of a boy without prejudice to his identity, for the boy and the adult are numerically the same man."