Book, Paragraph

 1   I,  2|       system of the bodies that move in a circle, and besides
 2   I,  7|        the whole might begin to move. Such is a comet-like a
 3   I,  7|        sun and the moon as they move, and encircle them, when
 4   I,  8|       that the sun used once to move in this circle and that
 5   I,  8|        only but all the planets move in it. We can see the whole
 6   I,  8|       the mirror and the object move, keeping the same distance
 7   I,  8|         circle of the milky way move; and so does the sun, the
 8  II,  7|       meaning that heavy bodies move to the earth from every
 9  II,  8| evidence of the fact that winds move below the surface of the
10  II,  9|         all analogous phenomena move downwards in spite of the
11 III,  1|   behind; so it is compelled to move sideways in the direction
12  IV,  9|    their surface can be made to move (but only in part) both