The third Zenonian argument derived its name from the flight of an arrow shot from a bow. The arrow while thus carried forward (says Zeno) is nevertheless at rest.[24] For the time from the beginning to the end of its course consists of a multitude of successive instants. During each of these instants the arrow is in a given place of equal dimension with itself. But that which is during any instant in a given place, is at rest. Accordingly during each successive instant of its flight, the arrow is at rest. Throughout its whole flight it is both in motion and at rest. This argument is a deduction from the doctrine of discontinuous time, as the preceding is a deduction from that of discontinuous space. [Footnote 24: Aristotel. Physic. vi. 9, p. 239, b. 30. [Greek: tri/tos o( nu=n r(êthei/s, o(/ti ê( o)i+sto\s pherome/nê e(/stêken.]] A fourth argument[25] was derived from the case of two equal bodies moved with equal velocity in opposite directions, and passing each other. If the body A B were at rest, the other body C D would move along the whole length of C D in two minutes. But if C D be itself moving with equal velocity in the opposite direction, A B will pass along the whole length of C D in half that time, or one minute. Hence Zeno infers that the motion of A B is nothing absolute, or belonging to the thing in itself--for if that were so, it would not be varied according to the movement of C D. It is no more than a phenomenal fact, relative to us and our comparison. [Footnote 25: See the illustration of this argument at some length by Simplikius, especially the citation from Eudêmus at the close of it--ap. Scholia ad Aristotel. p. 414, ed. Brandis.] This argument, so far as I can understand its bearing, is not deduced (as those preceding are) from the premisses of opponents: but rests upon premisses of its own, and is intended to prove that motion is only relative. [Side-note: General result and purpose of the Zenonian Dialectic. Nothing is knowable except the relative.]