Besides, this movement is a definite quantity. Either this quantity
will be measured by the extension of the space traversed, and the
interval will consist in that extension; but that extension is space,
and not time. Or we shall say that movement has a certain interval
because it is continuous, and that instead of stopping immediately it
always becomes prolonged; but this continuity is nothing else than the
magnitude (that is, the duration) of the movement. Even though after
consideration of a movement it be estimated as great, as might be said
of a "great heat"--this does not yet furnish anything in which time
might appear and manifest; we have here only a sequence of movements
which succeed one another like waves, and only the observed interval
between them; now the sequence of movements forms a number, such as
two or three; and the interval is an extension. Thus the magnitude of
the movement will be a number, say, such as ten; or an interval that
manifests in the extension traversed by the movement. Now the notion
of time is not revealed herein, but we find only a quantity that is
produced within time. Otherwise, time, instead of being everywhere,
will exist only in the movement as an attribute in a substrate, which
amounts to saying that time is movement; for the interval (of the
movement) is not outside of movement, and is only a non-instantaneous
movement. If then time be a non-instantaneous movement, just as we
often say that some particular instantaneous fact occurs within time,
we shall be forced to ask the difference between what is and what is
not instantaneous. Do these things differ in relation to time? Then the
persisting movement and its interval are not time, but within time.