Those were the genes, the living germs, bioblasts, biophores⁠—lying there in the frosty night, Hans Castorp rejoiced to make acquaintance with them by name. Yet how, he asked himself excitedly, even after more light on the subject was forthcoming, how could their elementary nature be established? If they were living, they must be organic, since life depended upon organization. But if they were organized, then they could not be elementary, since an organism is not single but multiple. They were units within the organic unit of the cell they built up. But if they were, then, however impossibly small they were, they must themselves be built up, organically built up, as a law of their existence; for the conception of a living unit meant by definition that it was built up out of smaller units which were subordinate; that is, organized with reference to a higher form. As long as division yielded organic units possessing the properties of life⁠—assimilation and reproduction⁠—no limits were set to it. As long as one spoke of living units, one could not correctly speak of elementary units, for the concept of unity carried with it in perpetuity the concept of subordinated, upbuilding unity; and there was no such thing as elementary life, in the sense of something that was already life, and yet elementary.