Chapter 49

Quantity is an accumulation of units—for the unit is not called quantity. When one unit and one unit are combined, they become two. Thus quantity is not division, but an accumulation and addition of units. For, to divide two into separate units of one, this is division; but to say that one and one are two, this, rather, is addition.

One must know that quantity is the measure itself and the number—that which measures and that which numbers. Quanta, however, are subject to number and measure; in other words, they are the thing that are measured and numbered. Of the quanta, some are discre