 For the mathematical numbers one must posit two things, the first and highest principles, the One (which indeed one ought not yet even call a being, because of the fact that it is simple and because of the fact that it is a principle for the things that are, while the principle is not yet such as are the things of which it is a principle), and again another principle, that of plurality, which can in its own right provide division as well, and for this reason we may, by way of making a comparison appropriate to its capacity, assert it to be like some moist and completely pliable matter; from which, the one and the principle of plurality, there is produced the first kind, of numbers, from both of these when combined with the help of some persuadable necessity.