Book, Paragraph

 1 III, 4 |    hardest of all and the most necessary to examine, and of this
 2 III, 4 |    universally.~But if this is necessary, and there must be something
 3 III, 4 |        individuals, it will be necessary that the genera exist apart
 4 III, 4 |        implies that change was necessary; but he shows no cause of
 5 III, 4 |    hardest of all and the most necessary for knowledge of the truth
 6 III, 6 |    actual cause, and it is not necessary for everything potential
 7  IV, 1 |   these same principles, it is necessary that the elements must be
 8  IV, 4 |       for another; for this is necessary, if he really is to say
 9  IV, 4 |         meant); and if this is necessary, it is impossible that the
10  IV, 4 |        for this is what "being necessary" means-that it is impossible
11  IV, 4 |      conclusion that it is not necessary either to assert or to deny.
12  IV, 5 |   essence of anything; for the necessary cannot be in this way and
13  IV, 8 |       be true. Again, if it is necessary with regard to everything
14   V, 5 |                     5~We call "necessary" (1) (a) that without which,
15   V, 5 |    e.g. breathing and food are necessary for an animal; for it is
16   V, 5 |       drinking the medicine is necessary in order that we may be
17   V, 5 |     man’s sailing to Aegina is necessary in order that he may get
18   V, 5 |       the compulsory is called necessary (whence the necessary is
19   V, 5 |   called necessary (whence the necessary is painful, as Evenus says: "
20   V, 5 |        Evenus says: "For every necessary thing is ever irksome"),
21   V, 5 |        And from this sense of "necessary" all the others are somehow
22   V, 5 |        to do or suffer what is necessary in the sense of compulsory,
23   V, 5 |  certain conditions, these are necessary, and this kind of cause
24   V, 5 |      Again, demonstration is a necessary thing because the conclusion
25   V, 5 |    other things. Therefore the necessary in the primary and strict
26   V, 12|      is not only true but also necessary; that it is commensurate,
27   V, 12|        is found when it is not necessary that the contrary is false,
28   V, 27|      mutilated; for it is also necessary that the essence remain;
29  VI, 3 |       of necessity; e.g. it is necessary that he who lives shall
30 VII, 9 |        produced; but it is not necessary that a quality or quantity
31 VII, 12|   differentiae.~But it is also necessary that the division be by
32 VII, 15|       then demonstration is of necessary truths and definition is
33 VII, 15|  eternal entities this is even necessary, since the elements are
34 VII, 15|  compound), it will be further necessary that the elements also of
35 VII, 16|       are, yet it is doubtless necessary that there should he some.-
36 VIII, 1|        involved; for it is not necessary if a thing has matter for
37  IX, 5 |       exercise but this is not necessary with those which are not
38  IX, 5 |    kind of potency this is not necessary. For the nonrational potencies
39  IX, 5 |    prevents it" is not further necessary; for it has the potency
40   X, 5 |    that came" as this is not a necessary disjunction in any class
41   X, 5 |   three cases. But it is not a necessary privation; for not everything
42   X, 10|     might be thought not to be necessary that every imperishable
43  XI, 5 | certain principle, yet this is necessary if there is to be completed
44  XI, 5 |         this connexion must be necessary; and it is not possible
45  XI, 8 |          and the latter is not necessary but indeterminate (I mean
46 XII, 6 |      we must assert that it is necessary that there should be an
47 XII, 7 |       first principle. For the necessary has all these senses-that
48 XII, 7 |     these senses-that which is necessary perforce because it is contrary
49 XII, 8 |       other planets.~But it is necessary, if all the spheres combined
50 XII, 10| thinkers are confronted by the necessary consequence that there is
51 XIII, 3|     and as it is not therefore necessary that there should be either
52 XIII, 7|     first it is reasonable and necessary that there should be a second,
53 XIII, 7|     itself. But it is actually necessary on their view that the 4
54 XIII, 8|       numbers.~If, then, it is necessary, if number is a self-subsistent
55 XIII, 9|        however, treating it as necessary, if there are to be any
56 XIV, 2 |      not are."~They thought it necessary to prove that that which
57 XIV, 2 |      plurality of these?~It is necessary, then, as we say, to presuppose
58 XIV, 2 |   beings. And it was much more necessary, as we said, if he was inquiring