Book, Paragraph

 1   I,  2 |         which we see in shafts of light coming through windows;
 2  II,  1 |          all. Further, we have no light on the problem whether the
 3  II,  7 |           except with the help of light; it is only in light that
 4  II,  7 |           of light; it is only in light that the colour of a thing
 5  II,  7 |           task is to explain what light is.~Now there clearly is
 6  II,  7 |         Cosmos. Of this substance light is the activity-the activity
 7  II,  7 |          contrary, viz. darkness. Light is as it were the proper
 8  II,  7 |           transparent is and what light is; light is neither fire
 9  II,  7 | transparent is and what light is; light is neither fire nor any
10  II,  7 |       same place. The opposite of light is darkness; darkness is
11  II,  7 | characterized; clearly therefore, light is just the presence of
12  II,  7 |          was wrong in speaking of light as "travelling" or being
13  II,  7 |        which is now darkness, now light.~Not everything that is
14  II,  7 |           is visible depends upon light for its visibility. This
15  II,  7 |         objects of sight which in light are invisible, in darkness
16  II,  7 |           is that what is seen in light is always colour. That is
17  II,  7 |           why without the help of light colour remains invisible.
18  II,  7 |       what is transparent is just light.~The following experiment
19  II,  7 |         be seen otherwise than in light. Fire on the other hand
20  II,  7 |           both in darkness and in light; this double possibility
21  II,  8 |       what happens in the case of light; light is always reflected-otherwise
22  II,  8 |     happens in the case of light; light is always reflected-otherwise
23  II,  8 |      darkness; but this reflected light is not always strong enough,
24  II,  8 |        mark by which we recognize light.~It is rightly said that
25  II,  8 |            as without the help of light colours remain invisible,
26  II,  10|         of hearing to over-bright light in the case of sight. As
27  II,  12|         quite evident as follows. Light or darkness, sounds and
28 III,  2 |        discriminate darkness from light, though not in the same
29 III,  3 |           been formed from Phaos (light) because it is not possible
30 III,  3 |           possible to see without light.~And because imaginations
31 III,  5 |       sort of positive state like light; for in a sense light makes
32 III,  5 |        like light; for in a sense light makes potential colours