1-500 | 501-1000 | 1001-1186
Book, Paragraph
501 VI, 8 | parts: for there cannot be motion in that which is without
502 VI, 8 | has been shown to be in motion. But since AB is therefore
503 VI, 8 | because there cannot be motion in that which is indivisible,
504 VI, 8 | the same as that in which motion takes place: for we defined
505 VI, 8 | state of a thing to which motion is natural but which is
506 VI, 8 | natural but which is not in motion when (that is to say in
507 VI, 8 | to say in that in which) motion would be natural to it.
508 VI, 8 | reason is that rest and motion are always in a period of
509 VI, 8 | since everything that is in motion is in motion in a period
510 VI, 8 | that is in motion is in motion in a period of time and
511 VI, 8 | something to something, when its motion is comprised within a particular
512 VI, 8 | that time that which is in motion should be over against some
513 VI, 8 | anything to be either in motion or at rest. So while it
514 VI, 8 | say that that which is in motion is at a moment not in motion
515 VI, 8 | motion is at a moment not in motion and is opposite some particular
516 VI, 9 | Zeno’s arguments about motion, which cause so much disquietude
517 VI, 9 | asserts the non-existence of motion on the ground that that
518 VI, 9 | velocity a body that is in motion and a body of equal size
519 VI, 9 | spheres and everything whose motion is confined within the space
520 VI, 9 | it is not true to say the motion can be nothing but rest,
521 VI, 9 | ground that such things in motion, themselves and their parts,
522 VI, 9 | be at once at rest and in motion. For in the first place
523 VI, 9 | and everything else whose motion is confined within the space
524 VI, 10 | without parts cannot be in motion except accidentally: i.e.
525 VI, 10 | accidentally: i.e. it can be in motion only in so far as the body
526 VI, 10 | body or the magnitude is in motion and the partless is in motion
527 VI, 10 | motion and the partless is in motion by inclusion therein, just
528 VI, 10 | which is in a boat may be in motion in consequence of the locomotion
529 VI, 10 | boat, or a part may be in motion in virtue of the motion
530 VI, 10 | motion in virtue of the motion of the whole. (It must be
531 VI, 10 | and that the case of the motion of a part is not exactly
532 VI, 10 | themselves distinct from the motion of the whole. The distinction
533 VI, 10 | implies that there is not one motion but many). As we have said,
534 VI, 10 | without parts can be in motion in the sense in which a
535 VI, 10 | sitting in a boat is in motion when the boat is travelling,
536 VI, 10 | travelling, but it cannot be in motion of itself. For suppose that
537 VI, 10 | which has no parts to be in motion or to change in any way:
538 VI, 10 | possible for it to have motion, viz. that time should be
539 VI, 10 | it would have completed a motion or a change, so that it
540 VI, 10 | that it would never be in motion, but would always have been
541 VI, 10 | would always have been in motion. But this we have already
542 VI, 10 | composed of points, and motion is not composed of starts:
543 VI, 10 | this theory simply makes motion consist of indivisibles
544 VI, 10 | way that there can be no motion of a point or of any other
545 VI, 10 | indivisible. That which is in motion can never traverse a space
546 VI, 10 | the indivisible to be in motion.~Again, since motion is
547 VI, 10 | in motion.~Again, since motion is always in a period of
548 VI, 10 | for everything that is in motion there must be a time less
549 VI, 10 | For that in which it is in motion will be a time, because
550 VI, 10 | will be a time, because all motion is in a period of time;
551 VI, 10 | Therefore, if a point is in motion, there must be a time less
552 VI, 10 | indivisible could be in motion would have been the possibility
553 VI, 10 | infinitely small being in motion in a moment: for in the
554 VI, 10 | the two questions-that of motion in a moment and that of
555 VI, 10 | in a moment and that of motion of something indivisible-the
556 VI, 10 | change. Consequently its motion is not infinite, and it
557 VI, 10 | in this way there may be motion for ever so far as the time
558 VI, 10 | but it will not be one motion, because all these motions
559 VI, 10 | is to be one process, no motion can be infinite in respect
560 VII, 1 | 1~EVERYTHING that is in motion must be moved by something.
561 VII, 1 | has not the source of its motion in itself it is evident
562 VII, 1 | it has the source of its motion in itself, let AB be taken
563 VII, 1 | represent that which is in motion essentially of itself and
564 VII, 1 | something belonging to it is in motion. Now in the first place
565 VII, 1 | that AB, because it is in motion as a whole and is not moved
566 VII, 1 | LM and is also itself in motion, we were to deny that KM
567 VII, 1 | second place that which is in motion without being moved by anything
568 VII, 1 | necessarily cease from its motion because something else is
569 VII, 1 | else having ceased from its motion causes it to be at rest.
570 VII, 1 | accepted, everything that is in motion must be moved by something.
571 VII, 1 | represent that which is in motion, must be divisible since
572 VII, 1 | since everything that is in motion is divisible. Let it be
573 VII, 1 | at G. Now if GB is not in motion, then AB will not be in
574 VII, 1 | then AB will not be in motion: for if it is, it is clear
575 VII, 1 | clear that AG would be in motion while BG is at rest, and
576 VII, 1 | and thus AB cannot be in motion essentially and primarily.
577 VII, 1 | But ex hypothesi AB is in motion essentially and primarily.
578 VII, 1 | Therefore if GB is not in motion AB will be at rest. But
579 VII, 1 | something else is not in motion must be moved by something.
580 VII, 1 | Consequently, everything that is in motion must be moved by something:
581 VII, 1 | something: for that which is in motion will always be divisible,
582 VII, 1 | if a part of it is not in motion the whole must be at rest.~
583 VII, 1 | Since everything that is in motion must be moved by something,
584 VII, 1 | something that is itself in motion, and that again is moved
585 VII, 1 | something else that is in motion, and that by something else,
586 VII, 1 | the movent while causing motion is also itself in motion,
587 VII, 1 | motion is also itself in motion, and the motion of the moved
588 VII, 1 | itself in motion, and the motion of the moved and the motion
589 VII, 1 | motion of the moved and the motion of the movent must proceed
590 VII, 1 | for the movent is causing motion and the moved is being moved
591 VII, 1 | simultaneous. Let us take the motion of each separately and let
592 VII, 1 | separately and let E be the motion of A, Z of B, and H and
593 VII, 1 | yet we may still take the motion of each as numerically one,
594 VII, 1 | numerically one, since every motion is from something to something
595 VII, 1 | its extreme points. By a motion that is numerically one
596 VII, 1 | numerically one I mean a motion that proceeds from something
597 VII, 1 | one and the same: for a motion may be the same generically,
598 VII, 1 | not one and the same, the motion would no longer be numerically
599 VII, 1 | which A has completed its motion, and let it be represented
600 VII, 1 | represented by K. Then since the motion of A is finite the time
601 VII, 1 | moved are infinite, the motion EZHO, i.e. the motion that
602 VII, 1 | the motion EZHO, i.e. the motion that is composed of all
603 VII, 1 | in both cases the whole motion is infinite. And since the
604 VII, 1 | infinite. And since the motion of A and that of each of
605 VII, 1 | simultaneous, the whole motion must occupy the same time
606 VII, 1 | occupy the same time as the motion of A: but the time occupied
607 VII, 1 | the time occupied by the motion of A is finite: consequently
608 VII, 1 | finite: consequently the motion will be infinite in a finite
609 VII, 1 | there may be an infinite motion, though not of one thing,
610 VII, 1 | thing accomplishes its own motion, and there is no impossibility
611 VII, 1 | in many things being in motion simultaneously. But if (
612 VII, 1 | case since the things in motion are infinite in number the
613 VII, 1 | infinite in number the whole motion will be infinite, if, as
614 VII, 1 | theoretically possible, each motion is either equal to or greater
615 VII, 1 | that passes through the motion EZHO in the finite time
616 VII, 1 | conclusion that an infinite motion is passed through in a finite
617 VII, 2 | there are three kinds of motion, local, qualitative, and
618 VII, 2 | for this is the primary motion. Everything that is in locomotion
619 VII, 2 | nothing in between. The motion of things that are moved
620 VII, 2 | other than that which is in motion, viz. pulling, pushing,
621 VII, 2 | which that which is causing motion away from itself follows
622 VII, 2 | when the movent causes a motion away from itself more violent
623 VII, 2 | it is controlled by the motion imparted to it. Again, pushing
624 VII, 2 | pushing off, which may be a motion either away from the pusher
625 VII, 2 | pulling, which may be a motion towards something else as
626 VII, 2 | there is no other kind of motion but combination and separation:
627 VII, 2 | that which is carried is in motion accidentally, because it
628 VII, 2 | upon something that is in motion, and that which carries
629 VII, 2 | the other three kinds of motion in common. And twirling
630 VII, 2 | pulling, for pushing is motion to something else from oneself
631 VII, 2 | something else, and pulling is motion from something else to oneself
632 VII, 2 | something else, when the motion of that which is pulling
633 VII, 2 | pulling is quicker than the motion that would separate from
634 VII, 2 | whether that which pulls is in motion or is stationary when it
635 VII, 2 | since the active sense is a motion through the body in the
636 VII, 3 | of it not by being set in motion at all itself but by reason
637 VII, 3 | amount of restlessness and motion in their souls. Nature itself
638 VII, 4 | raised as to whether every motion is commensurable with every
639 VII, 4 | must accomplish an equal motion in an equal time, then we
640 VII, 4 | it not only when an equal motion is accomplished by two things
641 VII, 4 | not the case that every motion is commensurable with every
642 VII, 4 | absurd to suppose that the motion of one in a circle and of
643 VII, 4 | argument to say that the one motion must inevitably be quicker
644 VII, 4 | to mean: and so quicker motion also implies that one thing
645 VII, 4 | meaning as applied to straight motion and to circular motion respectively?
646 VII, 4 | straight motion and to circular motion respectively? If so, far
647 VII, 4 | Similarly in the case of motion: two things are of the same
648 VII, 4 | certain equal amount of motion. Suppose, then, that in
649 VII, 4 | are different species of motion. And if in consequence of
650 VII, 4 | posture in that which is in motion.) We may say, therefore,
651 VII, 4 | therefore no difference in the motion that takes place over it.
652 VII, 4 | have now to consider how motion is differentiated: and this
653 VII, 5 | wherever there is a movent, its motion always acts upon something,
654 VII, 5 | when a thing is causing motion, it also has caused motion,
655 VII, 5 | motion, it also has caused motion, so that there must always
656 VII, 5 | be that it will cause no motion at all; for it does not
657 VII, 5 | causes a certain amount of motion, half that power will cause
658 VII, 5 | half that power will cause motion either of any particular
659 VIII, 1 | there ever a becoming of motion before which it had no being,
660 VIII, 1 | so as to leave nothing in motion? Or are we to say that it
661 VIII, 1 | things?~Now the existence of motion is asserted by all who have
662 VIII, 1 | without the existence of motion. But those who say that
663 VIII, 1 | assert that there is always motion (for these processes of
664 VIII, 1 | worlds necessarily involve motion), whereas those who hold
665 VIII, 1 | assumptions in regard to motion. If then it is possible
666 VIII, 1 | time nothing should be in motion, this must come about in
667 VIII, 1 | that then Mind introduced motion and separated them; or in
668 VIII, 1 | universe is alternately in motion and at rest-in motion, when
669 VIII, 1 | in motion and at rest-in motion, when Love is making the
670 VIII, 1 | their life:~But since their motion must alternate be,~Thus
671 VIII, 1 | they alternate from the one motion to the other. We must consider,
672 VIII, 1 | in our course on Physics. Motion, we say, is the fulfilment
673 VIII, 1 | is movable. Each kind of motion, therefore, necessarily
674 VIII, 1 | that are capable of that motion. In fact, even apart from
675 VIII, 1 | apart from the definition of motion, every one would admit that
676 VIII, 1 | admit that in each kind of motion it is that which is capable
677 VIII, 1 | which is capable of that motion that is in motion: thus
678 VIII, 1 | of that motion that is in motion: thus it is that which is
679 VIII, 1 | follows that before the motion in question another change
680 VIII, 1 | question another change or motion must have taken place in
681 VIII, 1 | being moved or of causing motion had its becoming. To suppose,
682 VIII, 1 | without there being any motion appears unreasonable on
683 VIII, 1 | rest being the privation of motion. Therefore, before this
684 VIII, 1 | change. For some things cause motion in only one way, while others
685 VIII, 1 | affected, or of causing motion and being moved, are capable
686 VIII, 1 | another that the one causes motion and the other is moved,
687 VIII, 1 | other movable. So if the motion was not always in process,
688 VIII, 1 | being moved and of causing motion, and one or other of them
689 VIII, 1 | without the existence of motion? If, then, time is the number
690 VIII, 1 | then, time is the number of motion or itself a kind of motion,
691 VIII, 1 | motion or itself a kind of motion, it follows that, if there
692 VIII, 1 | if there is always time, motion must also be eternal. But
693 VIII, 1 | it must also be true of motion, time being a kind of affection
694 VIII, 1 | being a kind of affection of motion.)~The same reasoning will
695 VIII, 1 | show the imperishability of motion: just as a becoming of motion
696 VIII, 1 | motion: just as a becoming of motion would involve, as we saw,
697 VIII, 1 | same way a perishing of motion would involve the existence
698 VIII, 1 | consequences, it is clear that motion is eternal and cannot have
699 VIII, 1 | alternately predominate and cause motion, while in the intermediate
700 VIII, 1 | assert a single principle (of motion) would hold this view. But
701 VIII, 1 | infinite time, and then motion is started at some moment,
702 VIII, 1 | alternately at rest and in motion: for in a system of this
703 VIII, 1 | time when there was not motion, and never will be a time
704 VIII, 1 | time when there will not be motion.~
705 VIII, 2 | thought to indicate that motion may exist though at one
706 VIII, 2 | mark its course, and no motion can go on to infinity.~Secondly,
707 VIII, 2 | thing that neither is in motion nor contains any motion
708 VIII, 2 | motion nor contains any motion within itself can be set
709 VIII, 2 | within itself can be set in motion; e.g. inanimate things that
710 VIII, 2 | part is in question) not in motion but at rest, are at some
711 VIII, 2 | are at some moment set in motion: whereas, if motion cannot
712 VIII, 2 | set in motion: whereas, if motion cannot have a becoming before
713 VIII, 2 | either always or never in motion.~Thirdly, the fact is evident
714 VIII, 2 | happens that there is no motion in us and we are quite still,
715 VIII, 2 | then at some moment set in motion, that is to say it sometimes
716 VIII, 2 | we produce a beginning of motion in ourselves spontaneously
717 VIII, 2 | anything having set us in motion from without. We see nothing
718 VIII, 2 | which are always set in motion by something else from without:
719 VIII, 2 | motionless thing in which motion can be produced from the
720 VIII, 2 | as a whole possibly be in motion or at rest.~Of these objections,
721 VIII, 2 | then, the first-mentioned motion to opposites is not always
722 VIII, 2 | that it is possible for the motion of that which is one and
723 VIII, 2 | to prevent there being a motion that is the same in virtue
724 VIII, 2 | fact that something not in motion may be set in motion, that
725 VIII, 2 | in motion may be set in motion, that which caused the motion
726 VIII, 2 | motion, that which caused the motion from without being at one
727 VIII, 2 | causes a thing to be in motion, and at another does not
728 VIII, 2 | and the rest always in motion?~The third objection may
729 VIII, 2 | that which alleges that motion arises in things in which
730 VIII, 2 | not having been set in motion apparently by anything from
731 VIII, 2 | the animal’s organism in motion, and the cause of the motion
732 VIII, 2 | motion, and the cause of the motion of this part is not the
733 VIII, 2 | and some of these set in motion the intellect or the appetite,
734 VIII, 2 | sets the whole animal in motion: this is what happens when
735 VIII, 2 | there is then no perceptive motion in them, there is some motion
736 VIII, 2 | motion in them, there is some motion that causes them to wake
737 VIII, 3 | world at one time are in motion and at another are at rest
738 VIII, 3 | all things are always in motion, or some things are in motion
739 VIII, 3 | motion, or some things are in motion and others at rest: and
740 VIII, 3 | either the things that are in motion are always in motion and
741 VIII, 3 | in motion are always in motion and the things that are
742 VIII, 3 | as to be capable alike of motion and of rest; or there is
743 VIII, 3 | motionless, others always in motion, while others again admit
744 VIII, 3 | received opinions, since motion plays a part in all of them.
745 VIII, 3 | assumption with him that motion is ultimately referable
746 VIII, 3 | assertion that all things are in motion we may fairly regard as
747 VIII, 3 | down that rest no less than motion is ultimately referable
748 VIII, 3 | nature herself, nevertheless motion is the characteristic fact
749 VIII, 3 | things in the world are in motion and always in motion, though
750 VIII, 3 | in motion and always in motion, though we cannot apprehend
751 VIII, 3 | state clearly what kind of motion they mean, or whether they
752 VIII, 3 | drops setting so much in motion, but a part of them will
753 VIII, 3 | will not set as much in motion in any period of time. The
754 VIII, 3 | one of these was set in motion separately: they were all
755 VIII, 3 | separately: they were all set in motion together. It is evident,
756 VIII, 3 | all things cannot be in motion. These and other similar
757 VIII, 3 | all things are always in motion or that all things are always
758 VIII, 3 | at rest, others always in motion, and nothing sometimes at
759 VIII, 3 | at rest and sometimes in motion. This theory must be pronounced
760 VIII, 3 | such thing as compulsory motion, if it is impossible that
761 VIII, 3 | rest before being set in motion unnaturally. This theory,
762 VIII, 3 | and perishing. Moreover, motion, it would seem, is generally
763 VIII, 3 | are cases of occasional motion and occasional rest.~We
764 VIII, 3 | at rest and sometimes in motion and to confront it with
765 VIII, 3 | rest, or all things are in motion, or some things are at rest
766 VIII, 3 | are at rest and others in motion. And if some things are
767 VIII, 3 | are at rest and others in motion, then it must be that either
768 VIII, 3 | at rest and sometimes in motion, or some things are always
769 VIII, 3 | the remainder always in motion, or some of the things are
770 VIII, 3 | rest and others always in motion while others again are sometimes
771 VIII, 3 | at rest and sometimes in motion. Now we have said before
772 VIII, 3 | that exist appear to be in motion. Now if there is such a
773 VIII, 3 | opinion at all, there is also motion; and similarly if there
774 VIII, 3 | all things should be in motion or that some things should
775 VIII, 3 | things should be always in motion and the remainder always
776 VIII, 3 | things that are sometimes in motion and sometimes at rest. It
777 VIII, 3 | things should be always in motion and the remainder always
778 VIII, 3 | all things should be in motion continuously. It remains,
779 VIII, 3 | capable both of being in motion and of being at rest, or
780 VIII, 3 | rest and some are always in motion: for it is this last view
781 VIII, 4 | Now of things that cause motion or suffer motion, to some
782 VIII, 4 | that cause motion or suffer motion, to some the motion is accidental,
783 VIII, 4 | suffer motion, to some the motion is accidental, to others
784 VIII, 4 | part a thing that causes motion or suffers motion, essential
785 VIII, 4 | causes motion or suffers motion, essential to a thing that
786 VIII, 4 | essential to a thing that causes motion or suffers motion not merely
787 VIII, 4 | causes motion or suffers motion not merely by belonging
788 VIII, 4 | Of things to which the motion is essential some derive
789 VIII, 4 | essential some derive their motion from themselves, others
790 VIII, 4 | and in some cases their motion is natural, in others violent
791 VIII, 4 | things that derive their motion from themselves, e.g. all
792 VIII, 4 | themselves, e.g. all animals, the motion is natural (for when an
793 VIII, 4 | for when an animal is in motion its motion is derived from
794 VIII, 4 | animal is in motion its motion is derived from itself):
795 VIII, 4 | whenever the source of the motion of a thing is in the thing
796 VIII, 4 | thing itself we say that the motion of that thing is natural.
797 VIII, 4 | of the animal may be in motion unnaturally as well as naturally:
798 VIII, 4 | depends upon the kind of motion that it may chance to be
799 VIII, 4 | it is composed. And the motion of things that derive their
800 VIII, 4 | things that derive their motion from something else is in
801 VIII, 4 | other unnatural: e.g. upward motion of earthy things and downward
802 VIII, 4 | earthy things and downward motion of fire are unnatural. Moreover
803 VIII, 4 | of animals are often in motion in an unnatural way, their
804 VIII, 4 | and the character of the motion being abnormal. The fact
805 VIII, 4 | that a thing that is in motion derives its motion from
806 VIII, 4 | is in motion derives its motion from something is most evident
807 VIII, 4 | evident in things that are in motion unnaturally, because in
808 VIII, 4 | cases it is clear that the motion is derived from something
809 VIII, 4 | Next to things that are in motion unnaturally those whose
810 VIII, 4 | unnaturally those whose motion while natural is derived
811 VIII, 4 | is not as to whether the motion is derived from something
812 VIII, 4 | organized, that which causes motion is separate from that which
813 VIII, 4 | from that which suffers motion, and that it is only in
814 VIII, 4 | as a whole causes its own motion.~The greatest difficulty,
815 VIII, 4 | Where things derive their motion from something else we distinguished
816 VIII, 4 | distinguished the cases in which the motion is unnatural: we are left
817 VIII, 4 | reason of the fact that the motion is natural. It is in these
818 VIII, 4 | experienced in deciding whence the motion is derived, e.g. in the
819 VIII, 4 | When these things are in motion to positions the reverse
820 VIII, 4 | would properly occupy, their motion is violent: when they are
821 VIII, 4 | violent: when they are in motion to their proper positions-the
822 VIII, 4 | the heavy thing down-their motion is natural; but in this
823 VIII, 4 | evident, as it is when the motion is unnatural, whence their
824 VIII, 4 | unnatural, whence their motion is derived. It is impossible
825 VIII, 4 | impossible to say that their motion is derived from themselves:
826 VIII, 4 | that in only one kind of motion is their motion derived
827 VIII, 4 | kind of motion is their motion derived from themselves.
828 VIII, 4 | also always derive their motion from something: what it
829 VIII, 4 | case of things that cause motion: some of them are capable
830 VIII, 4 | them are capable of causing motion unnaturally (e.g. the lever
831 VIII, 4 | is moved by something the motion is violent when it is unnatural,
832 VIII, 4 | such motions as the upward motion of fire and the downward
833 VIII, 4 | of fire and the downward motion of earth are derived. One
834 VIII, 4 | answer-how can we account for the motion of light things and heavy
835 VIII, 4 | obstructing and preventing its motion (e.g. one who pulls away
836 VIII, 4 | the accidental cause of motion): and in the same way the
837 VIII, 4 | way the real cause of the motion of a ball rebounding from
838 VIII, 4 | something or of causing motion, but of suffering it.~If
839 VIII, 4 | suffering it.~If then the motion of all things that are in
840 VIII, 4 | of all things that are in motion is either natural or unnatural
841 VIII, 4 | violent, and all things whose motion is violent and unnatural
842 VIII, 4 | and again all things whose motion is natural are moved by
843 VIII, 4 | then all things that are in motion must be moved by something.~
844 VIII, 5 | itself responsible for the motion, which is to be referred
845 VIII, 5 | itself responsible for the motion. Further, in the latter
846 VIII, 5 | then everything that is in motion must be moved by something,
847 VIII, 5 | then everything that is in motion is moved by something, and
848 VIII, 5 | moved by that which imparts motion by its own agency: on the
849 VIII, 5 | hand, if a thing imparts motion by its own agency, it is
850 VIII, 5 | else with which it imparts motion, whereas if there is a different
851 VIII, 5 | thing with which it imparts motion, there must be something
852 VIII, 5 | be something that imparts motion not with something else
853 VIII, 5 | different from itself. So when motion by means of an instrument
854 VIII, 5 | something else which imparts motion with itself. Therefore,
855 VIII, 5 | if this last movent is in motion and there is nothing else
856 VIII, 5 | If everything that is in motion is moved by something that
857 VIII, 5 | by something that is in motion, ether this being in motion
858 VIII, 5 | motion, ether this being in motion is an accidental attribute
859 VIII, 5 | something while being itself in motion, but not always because
860 VIII, 5 | because it is itself in motion, or it is not accidental
861 VIII, 5 | necessary that that is in motion should be in motion: and
862 VIII, 5 | is in motion should be in motion: and if this is so it is
863 VIII, 5 | nothing that exists is in motion, since the accidental is
864 VIII, 5 | But the nonexistence of motion is an impossibility: for
865 VIII, 5 | that there must always be motion.~Moreover, the conclusion
866 VIII, 5 | movent, and the instrument of motion. Now the moved must be in
867 VIII, 5 | Now the moved must be in motion, but it need not move anything
868 VIII, 5 | else: the instrument of motion must both move something
869 VIII, 5 | something else and be itself in motion (for it changes together
870 VIII, 5 | to say, that which causes motion in such a manner that it
871 VIII, 5 | the capacity of being in motion, but does not contain a
872 VIII, 5 | also of that which is in motion but is moved by itself and
873 VIII, 5 | also, that which causes motion but is itself unmoved. So,
874 VIII, 5 | makes it the principle of motion: for it could cause motion
875 VIII, 5 | motion: for it could cause motion in this sense only by being
876 VIII, 5 | that, if it were not in motion, it would not move anything-then
877 VIII, 5 | movent, in so far as it is in motion, must be in motion in one
878 VIII, 5 | is in motion, must be in motion in one of two ways: it is
879 VIII, 5 | moved with the same kind of motion, or with a different kind-either
880 VIII, 5 | lowest species into which motion can be divided: e.g. we
881 VIII, 5 | must say that one kind of motion is derived from another;
882 VIII, 5 | suffering some different kind of motion. But the series must stop
883 VIII, 5 | somewhere, since the kinds of motion are limited; and if we say
884 VIII, 5 | has a capacity for causing motion has as such a corresponding
885 VIII, 5 | has a capacity for causing motion has as such a capacity for
886 VIII, 5 | moved by something else, the motion that it has the capacity
887 VIII, 5 | what is next to it, but a motion of a different kind; e.g.
888 VIII, 5 | arrived at the same kind of motion). Now the first alternative
889 VIII, 5 | the first thing that is in motion will derive its motion either
890 VIII, 5 | in motion will derive its motion either from something that
891 VIII, 5 | the cause and principle of motion, every one would decide
892 VIII, 5 | Now everything that is in motion must be infinitely divisible,
893 VIII, 5 | everything that is essentially in motion is continuous. Now it is
894 VIII, 5 | potentially, not actually, in motion, but the potential is in
895 VIII, 5 | process to actuality, and motion is an incomplete actuality
896 VIII, 5 | and that which derives its motion from itself: and that which
897 VIII, 5 | nearer to the principle of motion than that which is intermediate.
898 VIII, 5 | that there should always be motion makes it necessary that
899 VIII, 5 | thing undergoing the same motion that it is causing-that
900 VIII, 5 | distinguish that which imparts motion without itself being moved
901 VIII, 5 | it that which imparts the motion and that which is moved:
902 VIII, 5 | since that which imparts motion may be either a thing that
903 VIII, 5 | either a thing that imparts motion to something else or a thing
904 VIII, 5 | that is unmoved but imparts motion and also of something that
905 VIII, 5 | does not necessarily impart motion but may or may not do so.
906 VIII, 5 | be something that imparts motion but is unmoved, B something
907 VIII, 5 | move itself, A imparting motion and B being moved, whereas
908 VIII, 5 | apart from A: for B imparts motion only through being moved
909 VIII, 5 | comprise something that imparts motion but is unmoved and something
910 VIII, 5 | then, that which imparts motion is a continuous substance-that
911 VIII, 5 | being moved and imparting motion through containing a part
912 VIII, 5 | containing a part that imparts motion and a part that is moved.
913 VIII, 5 | moved. It does not impart motion as a whole nor is it moved
914 VIII, 5 | is A alone that imparts motion and B alone that is moved.
915 VIII, 5 | that that which imparts motion but is unmoved is a continuous
916 VIII, 5 | of A continue to impart motion or the remainder of B continue
917 VIII, 5 | which primarily imparts motion is unmoved: for, whether
918 VIII, 5 | once by that which is in motion but moved by something else
919 VIII, 5 | something else deriving its motion directly from the first
920 VIII, 5 | unmoved, or whether the motion is derived from what is
921 VIII, 5 | derived from what is in motion but moves itself and stops
922 VIII, 5 | itself and stops its own motion, on both suppositions we
923 VIII, 5 | cases of things being in motion that which primarily imparts
924 VIII, 5 | which primarily imparts motion is unmoved.~
925 VIII, 6 | Since there must always be motion without intermission, there
926 VIII, 6 | plurality, that first imparts motion, and this first movent must
927 VIII, 6 | that are unmoved but impart motion is eternal is irrelevant
928 VIII, 6 | but capable of imparting motion at one time are and at another
929 VIII, 6 | has not parts can be in motion, that which moves itself
930 VIII, 6 | that are unmoved but impart motion, and though many things
931 VIII, 6 | change: and this causes the motion of the other movents, while
932 VIII, 6 | they are the causes of the motion of other things. Motion,
933 VIII, 6 | motion of other things. Motion, then, being eternal, the
934 VIII, 6 | will be the principle of motion to everything else.~The
935 VIII, 6 | that there must always be motion. That being so, motion must
936 VIII, 6 | be motion. That being so, motion must also be continuous,
937 VIII, 6 | continuous. But further, if motion is continuous, it is one:
938 VIII, 6 | now by another the whole motion will not be continuous but
939 VIII, 6 | some that are sometimes in motion and sometimes at rest. This
940 VIII, 6 | either that all things are in motion or that all things are at
941 VIII, 6 | the remainder always in motion: on this matter proof is
942 VIII, 6 | capacity of being sometimes in motion and sometimes at rest. The
943 VIII, 6 | things that are always in motion. In the course of our argument
944 VIII, 6 | that everything that is in motion is moved by something, and
945 VIII, 6 | is either unmoved or in motion, and that, if it is in motion,
946 VIII, 6 | motion, and that, if it is in motion, it is moved either by itself
947 VIII, 6 | causes things that are in motion to be moved is that which
948 VIII, 6 | perhaps it may be possible for motion to come to be in a thing
949 VIII, 6 | and then again they are in motion, as it seems. We must grasp
950 VIII, 6 | themselves only with one kind of motion, and that this is not strictly
951 VIII, 6 | it is at rest and not in motion in respect of the motion
952 VIII, 6 | motion in respect of the motion set up by its own agency:
953 VIII, 6 | its own agency: here the motion is caused by the atmosphere
954 VIII, 6 | first principle of this motion being thus originally derived
955 VIII, 6 | not always in continuous motion by their own agency: it
956 VIII, 6 | moves them, itself being in motion and changing as it comes
957 VIII, 6 | should cause continuous motion. So the necessity that there
958 VIII, 6 | necessity that there should be motion continuously requires that
959 VIII, 6 | an unceasing and undying motion, and the world is to remain
960 VIII, 6 | however, between accidental motion of a thing by itself and
961 VIII, 6 | thing by itself and such motion by something else, the former
962 VIII, 6 | require something that is in motion to move them: for the motion
963 VIII, 6 | motion to move them: for the motion imparted by the unmoved
964 VIII, 6 | something that, though it is in motion, is moved directly by the
965 VIII, 6 | that it moves, so that the motion that it causes will not
966 VIII, 6 | rest and at another time in motion.~The foregoing argument,
967 VIII, 6 | all things being either in motion or at rest, or some things
968 VIII, 6 | some things being always in motion and the remainder always
969 VIII, 6 | things that are sometimes in motion and sometimes not? The cause
970 VIII, 6 | are therefore always in motion, other things are moved
971 VIII, 6 | moved by a movent that is in motion and changing, so that they
972 VIII, 6 | the same state, will cause motion that is one and simple.~
973 VIII, 7 | there should be a continuous motion, and, if it is possible,
974 VIII, 7 | is possible, which this motion is, and which is the primary
975 VIII, 7 | and which is the primary motion: for it is plain that if
976 VIII, 7 | if there must always be motion, and a particular motion
977 VIII, 7 | motion, and a particular motion is primary and continuous,
978 VIII, 7 | continuous, then it is this motion that is imparted by the
979 VIII, 7 | Now of the three kinds of motion that there are-motion in
980 VIII, 7 | in respect of magnitude, motion in respect of affection,
981 VIII, 7 | respect of affection, and motion in respect of place-it is
982 VIII, 7 | therefore, there must always be motion, there must also always
983 VIII, 7 | locomotion as the primary motion, and, if there is a primary
984 VIII, 7 | things so too in the case of motion the word "primary" may be
985 VIII, 7 | sense. Now there must be motion continuously, and there
986 VIII, 7 | continuously either continuous motion or successive motion, the
987 VIII, 7 | continuous motion or successive motion, the former, however, in
988 VIII, 7 | continuous rather than successive motion, and we always assume the
989 VIII, 7 | since, then, continuous motion is possible (this will be
990 VIII, 7 | for granted), and no other motion can be continuous except
991 VIII, 7 | existence of the continuous motion imparted by the first movent.~
992 VIII, 7 | time: for this is the only motion possible for things. It
993 VIII, 7 | increase, and locomotion is a motion that belongs to such things
994 VIII, 7 | thought to be the primary motion on the ground that the thing
995 VIII, 7 | something else must be in motion, not itself becoming but
996 VIII, 7 | were, everything that is in motion would be perishable-it is
997 VIII, 7 | organ, are entirely without motion, whereas others acquire
998 VIII, 7 | natural development, then this motion must be prior to all others
999 VIII, 7 | because a thing that is in motion loses its essential character
1000 VIII, 7 | than in any other kind of motion: it is the only motion that
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