Book,  Paragraph

 1   I,  2 |           any one can see that fire moves in a straight line away
 2   I,  3 |             to that which naturally moves towards the centre, and "
 3   I,  3 |           and "light" to that which moves naturally away from the
 4   I,  3 |          surface of everything that moves upward. Now, necessarily,
 5   I,  3 |       necessarily, everything which moves either up or down possesses
 6   I,  3 |        earth. The body, then, which moves in a circle cannot possibly
 7   I,  3 |           And so, if the body which moves with a circular motion cannot
 8   I,  4 |           point, because that which moves in a circle, at whatever
 9   I,  5 |          the others.~The body which moves in a circle must necessarily
10   I,  5 |          the heaven is infinite and moves in a circle, we shall have
11   I,  5 |            infinite, and that which moves within it equal to it. It
12   I,  5 |           shown that the body which moves in a circle is not endless
13   I,  6 |         Further, neither that which moves towards nor that which moves
14   I,  6 |        moves towards nor that which moves away from the centre can
15   I,  6 |             be in it, since the one moves naturally away from the
16   I,  6 |       following way. A given weight moves a given distance in a given
17   I,  6 |          which is as great and more moves the same distance in a less
18   I,  7 |             that neither that which moves downward, nor, by the same
19   I,  7 |          same reasoning, that which moves upward, can prolong its
20   I,  7 |        assuming that a lesser agent moves a lesser patient in an equal
21   I,  7 |            infinite, and that which moves in a circle moves about
22   I,  7 |             which moves in a circle moves about the centre. Nor again
23   I,  7 |          power.) If then that which moves naturally can also move
24   I,  7 |              Again, what is it that moves the infinite? If it moves
25   I,  7 |           moves the infinite? If it moves itself, it must be animate.
26   I,  7 |        there is something else that moves it, there will be two infinites,
27   I,  7 |           two infinites, that which moves and that which is moved,
28   I,  7 |           motion. For a single clod moves to the same place as the
29   I,  7 |          thing rests or to which it moves unnaturally, must be the
30   I,  8 |          and by constraint. A thing moves naturally to a place in
31   I,  8 |    naturally in a place to which it moves without constraint. On the
32   I,  8 |             the other hand, a thing moves by constraint to a place
33   I,  8 |   constraint in a place to which it moves by constraint. Further,
34   I,  8 |            by constraint that earth moves from a certain place to
35   I,  8 |             from the centre when it moves towards the centre of another
36   I,  8 | corroborated by the fact that earth moves more quickly the nearer
37   I,  8 |            more distant, and a body moves without constraint to the
38   I,  9 |          been shown that that which moves in a circle cannot change
39   I,  9 |             it cannot be that which moves from the centre or that
40  II,  4 |            Therefore, if the heaven moves in a circle and moves more
41  II,  4 |        heaven moves in a circle and moves more swiftly than anything
42  II,  6 |              It is the primary that moves the primary, the simple
43  II,  8 |            that of the circle in it moves. For star and circle are
44  II,  8 |         suppose that the star which moves on the greater circle is
45  II,  8 |       motion or that the star alone moves, the remaining alternative
46  II,  8 |           proper motion, the larger moves quicker. It is the same
47  II,  12|          this reason that the earth moves not at all and the bodies
48  II,  12|            since each single planet moves with a variety of motions.
49  II,  12|        bodies. For this last sphere moves with many others, to which
50  II,  13|         earth, let loose in mid-air moves and will not stay still,
51  II,  13|        there is of it the faster it moves, the whole earth, free in
52  II,  13|            centre, but also that it moves to the centre. The place
53  II,  13|         which any fragment of earth moves must necessarily be the
54  II,  13|            place to which the whole moves; and in the place to which
55  II,  13|             which a thing naturally moves, it will naturally rest.
56  II,  13|         thing, if nothing stops it, moves up, and another thing to
57  II,  14|          question whether the earth moves or is at rest. For, as we
58  II,  14|              but in fact every part moves in a straight line to the
59  II,  14|              Again, everything that moves with the circular movement,
60  II,  14|            which the part naturally moves. Since, then, it would require
61  II,  14|           weight, of whatever size, moves towards the centre. Clearly
62  II,  14|          seen are different, as one moves northward or southward.
63 III,  2 |          one. For naturally a thing moves in one way, while its unnatural
64 III,  2 |            while B in the same time moves the distance CE, which will
65 III,  2 |            whole). Now if the whole moves the whole distance CE, the
66 III,  2 |         there will be a force which moves it, and the smaller and
67 III,  5 |            its quantity is greater, moves faster with the upward motion
68 III,  8 |         anywhere; from any other it moves if nothing hinders, and
69  IV,  1 |            then, we mean that which moves upward or to the extremity,
70  IV,  1 |         absolutely heavy that which moves downward or to the centre.
71  IV,  2 |            fire is always light and moves upward, while earth and
72  IV,  2 |             air the more readily it moves upward, and any portion
73  IV,  2 |           light, which nevertheless moves downward as constantly as
74  IV,  2 |             constantly as the other moves upward. But that cannot
75  IV,  2 |             light and nothing which moves upward (except as being
76  IV,  3 |            older writers that "like moves to like". For the words
77  IV,  3 |             to its like that a body moves when it moves to its own
78  IV,  3 |           that a body moves when it moves to its own place. For the
79  IV,  3 |       matter.) Thus to ask why fire moves upward and earth downward
80  IV,  3 |      already actually fire or earth moves, when nothing obstructs
81  IV,  3 |            how none of these things moves itself. The reason of the
82  IV,  4 |             is no external obstacle moves upward, and earth downward;
83  IV,  4 |            of its own nature always moves upward, by absolutely heavy
84  IV,  4 |            of its own nature always moves downward, if no obstacle
85  IV,  4 |        there is a heavy body, which moves uniformly towards the centre.
86  IV,  4 |        things, and that which sinks moves to the centre. That there
87  IV,  4 |            of the whole to which it moves, may be left to another
88  IV,  4 |            the bottom of all things moves to the centre, necessarily
89  IV,  4 |          which rises to the surface moves to the extremity of the
90  IV,  5 |          matter is light and always moves upward, while a thing which
91  IV,  5 |          matter is heavy and always moves downward. Bodies composed
92  IV,  5 |            is withdrawn such a body moves downward until it reaches
93  IV,  5 |            something similar, which moves uniformly upward, there
94  IV,  5 |             portion of air whatever moves downward. And the same reasoning
95  IV,  5 |           air in a certain quantity moves downward more quickly than