will produce the motion in BF in the time C.Thus the finite and infinite effect the same alteration in equal times.But this is impossible; for the assumption is that the greater effects it in a shorter time.It will be the same with any time that can be taken, so that there will no time in which the infinite can effect this movement.And, as to infinite time, in that nothing can move another or be moved by it.For such time has no limit, while the action and reaction have.
(3.There is no interaction between infinites.) Nor can infinite be acted upon in any way by infinite.Let A and B be infinites, CD
being the time of the action A of upon B.Now the whole B was modified in a certain time, and the part of this infinite, E, cannot be so modified in the same time, since we assume that a less quantity makes the movement in a less time.Let E then, when acted upon by A, complete the movement in the time D.Then, as D is to CD, so is E to some finite part of B.This part will necessarily be moved by A in the time CD.For we suppose that the same agent produces a given effect on a greater and a smaller mass in longer and shorter times, the times and masses varying proportionately.There is thus no finite time in which infinites can move one another.Is their time then infinite? No, for infinite time has no end, but the movement communicated has.
If therefore every perceptible body possesses the power of acting or of being acted upon, or both of these, it is impossible that an infinite body should be perceptible.All bodies, however, that occupy place are perceptible.There is therefore no infinite body beyond the heaven.Nor again is there anything of limited extent beyond it.And so beyond the heaven there is no body at all.For if you suppose it an object of intelligence, it will be in a place-since place is what 'within' and 'beyond' denote-and therefore an object of perception.But nothing that is not in a place is perceptible.