Book, Paragraph

 1   I,  1 |       the principle of animal life. Our aim is to grasp and
 2   I,  1 | material substratum of animal life, to which we have seen that
 3   I,  2 |    the characteristic mark of life; as the environment compresses
 4   I,  5 |   soul? So too with regard to life. Does it depend on one of
 5  II,  1 |      natural bodies some have life in them, others not; by
 6  II,  1 |       in them, others not; by life we mean self-nutrition and
 7  II,  1 |  every natural body which has life in it is a substance in
 8  II,  1 |      such a kind, viz. having life, the body cannot be soul;
 9  II,  1 |      of a natural body having life potentially within it. But
10  II,  1 |      of a natural body having life potentially in it. The body
11  II,  2 |      that the former displays life. Now this word has more
12  II,  4 |    which all are said to have life. The acts in which it manifests
13 III,  13|      is the essential mark of life; for it has been shown that