Book, Paragraph

 1  IV, 8 |  natural locomotion, e.g. fire upward and earth downward and towards
 2   V, 5 |     another. Similarly we have upward locomotion and downward
 3   V, 6 |   manner described above, e.g. upward motion and rest above are
 4   V, 6 |      of local contrariety; and upward locomotion belongs naturally
 5   V, 6 |        one of its motions, the upward or the downward, will be
 6   V, 6 |        being carried violently upward was coming to a standstill.
 7   V, 6 |        e.g. fire has a natural upward motion and an unnatural
 8   V, 6 |        contrary to the natural upward motion? Surely it is clear
 9   V, 6 |      also natural, whereas the upward motion of fire as being
10 VIII, 4|       in other unnatural: e.g. upward motion of earthy things
11 VIII, 4|  itself possesses the power of upward locomotion, it is clear
12 VIII, 4|     whence such motions as the upward motion of fire and the downward
13 VIII, 4|  former being determined by an upward, the latter by a downward,
14 VIII, 8| respect of place is concerned, upward motion is the contrary of
15 VIII, 8|  motion is not the contrary of upward motion. But what shows most