De Plantatione

Having therefore gone through all the larger plants in the universe, let us see in what manner the all-wise God made the trees which exist in the smaller world, that is to say, in man. In the first place, then, taking our body as if it were a field of deep soil, he created the external senses to be in it as so many channels.

And after that, he arranged the place of each separate one of them, as if it had been a fruit-bearing and most useful tree, assigning the sense of hearing to the ear, that of sight to the eyes, that of smell to the nostrils, and each of the other senses and faculties to their kindred and appropriate organs. And the divine man bears his testimony to this account of mine, speaking thus in his Psalms, "He that planted the ear, doth he not hear? and he that made the eyes, shall he not see?" [*](Psalm xciv. 9. )