Just as the sea is a capacity in which all the animals of the water are born and live and die, so the air is a capacity in which many creatures live and move and have their being, and the earth is a capacity which conceives within itself the plants, the trees, and all the different stones, metals, minerals, and other substances which come out of it. Again, everything, the stone, the tree, or a fruit or a flower, is a capacity in which a perfume may be formed, or a savor. Thus the living being is a capacity, and man is a finished capacity.