Book, Paragraph

 1   I, 2|     then either two or three or four or some other number. If (
 2   I, 6|  substance different from these four; of the rest, the next best
 3   I, 6|        acted on; but if we have four contraries, there will be
 4  II, 3|         now mentioned fall into four familiar divisions. The
 5  II, 7|   number.~Now, the causes being four, it is the business of the
 6  IV, 1|    space the cause? None of the four modes of causation can be
 7  IV, 4|        place is. There are just four things of which place must
 8  IV, 4|   necessarily is the one of the four which is left, namely, the
 9   V, 1|   changes must change in one of four ways: from subject to subject,
10  VI, 9| problems that they present, are four in number. The first asserts
11 VII, 2|     else must proceed in one of four ways: for there are four
12 VII, 2|        four ways: for there are four kinds of locomotion caused
13 VII, 2|       under one or other of our four heads. And again, of these
14 VII, 2|      heads. And again, of these four, carrying and twirling are