Book, Paragraph

 1  II,  7|        movement what is actually transparent; that power constitutes
 2  II,  7|    clearly is something which is transparent, and by "transparent" I
 3  II,  7|          is transparent, and by "transparent" I mean what is visible,
 4  II,  7|         Neither air nor water is transparent because it is air or water;
 5  II,  7|        is air or water; they are transparent because each of them has
 6  II,  7| activity-the activity of what is transparent so far forth as it has in
 7  II,  7|    determinate power of becoming transparent; where this power is present,
 8  II,  7|         proper colour of what is transparent, and exists whenever the
 9  II,  7|         whenever the potentially transparent is excited to actuality
10  II,  7|      have now explained what the transparent is and what light is; light
11  II,  7|       resembling fire in what is transparent. It is certainly not a body,
12  II,  7|         the absence from what is transparent of the corresponding positive
13  II,  7|  colourless includes (a) what is transparent and (b) what is invisible
14  II,  7|           is the same as what is transparent, when it is potentially,
15  II,  7|       course when it is actually transparent; it is the same substance
16  II,  7|         what is already actually transparent, and, as we have seen, the
17  II,  7|         the actuality of what is transparent is just light.~The following
18  II,  7|          sense organ but what is transparent, e.g. the air, and that,
19  II,  7|        makes what is potentially transparent actually transparent.~The
20  II,  7| potentially transparent actually transparent.~The same account holds
21  II,  7|         corresponding to what is transparent in the case of colour, there
22  II,  9|  whatever presents itself in the transparent medium. Similarly in certain
23 III,  1|      transmit colour, both being transparent, then the possessor of either