that by which oneness is denoted. Again “two” belongs to the class of things as men or stones; but not so duality; duality is merely that whereby two men or two stones are denoted; and so on. Therefore a repetition of unitiesa produces plurality when it is a question of abstract, but not when it is a question of concrete things, as, for example, if I say of one and the same thing, “one sword, one brand, one blade.”b It is easy to see that each of these names denotes a sword; I am not numbering unities