 it is not divisible in account [Arabic qawl = Greek logos] into things by which it is  substantified,[50]  since it is impossible that each part of the account which explicates its meaning should signify a part of what it is substantified by. For if it were so, the parts by which it is substantified would be causes of its existence [wujûd] in the way that the meanings which the parts of a thing’s definition signify are causes of the existence of the thing defined, and in the way that the matter and the form are causes of the existence of what is composed out of them; and this is impossible for it, since it is first and its existence has no cause at all. And if it is not divisible by these divisions, it is even further from being divisible by divisions of quantity or the other ways of being divided. (Walzer 1985, 66,8–68,1)