Book,  Paragraph

 1  II,  13|    rest upon. Again, as air is lighter than water, so is water
 2  II,  13|       think that the naturally lighter substance lies below the
 3 III,  1 |    something and a light thing lighter than something, a thing
 4 III,  1 |      thing which is heavier or lighter than something need not
 5 III,  2 |        it, and the smaller and lighter a body is the further will
 6  IV,  1 |  downward or to the centre. By lighter or relatively light we mean
 7  IV,  2 |       weight is said to be the lighter. And this treatment they
 8  IV,  2 | advance. One use of the terms "lighter" and "heavier" is that which
 9  IV,  2 |      greater the quantity, the lighter the mass is and the quicker
10  IV,  2 |   slower. Further, since to be lighter is to have fewer of these
11  IV,  2 |      makes the larger body the lighter. The reason is that there
12  IV,  2 |       a small mass of fire, is lighter than it, unless it also
13  IV,  2 |      greater bulk is sometimes lighter than smaller bodies is one
14  IV,  2 |    void, there will be a body, lighter than the absolutely light,
15  IV,  2 |     absolutely light is always lighter than bodies which have weight
16  IV,  2 |      other hand, that which is lighter need not be light, because
17  IV,  2 |        speech we distinguish a lighter and a heavier (viz. water
18  IV,  4 |       light or heavy. Both are lighter than earth-for any portion
19  IV,  4 |       in water the wood is the lighter. The reason is that all
20  IV,  4 |   earth and water, may well be lighter than something in water