Book, Paragraph

1 VII, 4 |        seem, accordingly as the instrument of the locomotion is different:
2 VII, 4 | different: thus if feet are the instrument, it is walking, if wings
3 VIII, 5|      when motion by means of an instrument is at each stage caused
4 VIII, 5|    something different from the instrument, this must always be preceded
5 VIII, 5|      moved, the movent, and the instrument of motion. Now the moved
6 VIII, 5|         move anything else: the instrument of motion must both move
7 VIII, 5|       that it is not merely the instrument of motion-must be unmoved.