Indeed, it is not you who here below produce number when you by
discursive reason range through things that exist by themselves, and
which do not depend for their existence on your enumeration; for you
add nothing to the being of a man by enumerating him with another. That
is no unity, as in a "choric ballet." When you say, ten men, "ten"
exists only in you who are enumerating. We could not assert that "ten"
exists in the ten men you are enumerating, because these men are not
co-ordinated so as to form a unity; it is you yourself who produce ten
by enumerating this group of ten, and by making up a quantity. But
when you say, a "choric ballet," an "army," there is something which
exists outside of these objects, and within yourself.[39] How are we
to understand that the number exists in you? The number which existed
in you before you made the enumeration has another mode (of existence)
(than the number that you produce by enumeration). As to the number
which manifests itself in exterior objects and refers to the number
within yourself, it constitutes an actualization of the essential
numbers, or, is conformable to the essential Numbers; for, while
enumerating you produce a number, and by this actualization you give
hypostatic existence to quantity, as in walking you did to movement.