Book, Paragraph

 1   I, 3 |           this distinction.~It is necessary for him, then, to assume
 2   I, 4 |    actually present in it), it is necessary that the whole thing itself
 3   I, 6 |           the view that it is not necessary to assume a third principle
 4   I, 7 |         of putting it this is not necessary, as one of the contraries
 5  II, 3 |           each thing it is always necessary to seek what is most precise (
 6  II, 5 |      things which are outside the necessary and the normal, there are
 7  II, 5 |     intelligent reflection.~It is necessary, no doubt, that the causes
 8  II, 8 |          something; (2) about the necessary and its place in physical
 9  II, 9 |       without things which have a necessary nature, but it is not due
10  II, 9 |           iron. It is, therefore, necessary for it to be of iron, it
11  II, 9 |      operation of sawing. What is necessary then, is necessary on a
12  II, 9 |        What is necessary then, is necessary on a hypothesis; it is not
13  II, 9 |         line is what it is, it is necessary that the angles of a triangle
14  II, 9 |          to two right angles.~The necessary in nature, then, is plainly
15  II, 9 |           then those. Perhaps the necessary is present also in the definition.
16 III, 1 |        and time are thought to be necessary conditions of motion.~Clearly,
17 III, 2 |       grasp what motion is. It is necessary to class it with privation
18 III, 3 |         difficulty. Perhaps it is necessary that the actuality of the
19 III, 3 |          is acting.~(3) Nor is it necessary that the teacher should
20 III, 4 |      quality or a point-it is not necessary perhaps that such things
21 III, 6 |          is not sufficient: it is necessary also that the next part
22 III, 8 |        should not fail, it is not necessary that there should be a sensible
23  IV, 5 |           present occasion it was necessary to refer to them: what has
24  IV, 8 |         void must exist, as being necessary if there is to be movement,
25  IV, 9 |    bulkier than the water): it is necessary therefore, if compression
26  IV, 10|          thing is to exist, it is necessary that, when it exists, all
27  IV, 11|          point as two, a pause is necessary, if the same point is to
28  IV, 12|       time can be found. So it is necessary that all the things in time
29   V, 3 |        points), whereas it is not necessary that there should possibly
30  VI, 1 |          is neither more nor less necessary that time also be similarly
31  VI, 2 |         time, and thus we get the necessary consequence that the quicker
32  VI, 4 |          not black: for it is not necessary that that that which is
33 VIII, 1|        what is relative this is a necessary consequence: e.g. if one
34 VIII, 2|          this may be said to be a necessary conclusion, provided that
35 VIII, 5|         its own agency, it is not necessary that there should be anything
36 VIII, 5|   accidental attribute, it is not necessary that that is in motion should
37 VIII, 5|       since the accidental is not necessary but contingent. Now if we
38 VIII, 5| reasonable, therefore, not to say necessary, to suppose the existence
39 VIII, 5|           for increase. It is not necessary, therefore, that that which
40 VIII, 5|         always be motion makes it necessary that there should be some
41 VIII, 5|       their self-motion not being necessary, we may take the case of
42 VIII, 6|          fact it would seem to be necessary, if a thing that has not
43 VIII, 6|      relation must be eternal and necessary, whereas the sum of these
44 VIII, 8|         this to happen it will be necessary that it should come to a