And if I go on taking parts in this way, since there is no part which will be a measure of the infinite time (for the infinite cannot be composed of finite parts whether equal or unequal, because there must be some unity which will be a measure of things finite in multitude or in magnitude, which, whether they are equal or unequal, are none the less limited in magnitude), and the finite interval is measured by the quantities consequently the motion must be accomplished in a finite time.