Book, Paragraph

 1   I, 5|   and those too who use the rare and the dense. The same
 2   I, 5|   class, "the dense and the rare" to the latter.~It is clear
 3  IV, 9|    Now, if they mean by the rare that which has many voids
 4  IV, 9|     itself, neither can the rare exist in this sense. But
 5  IV, 9|    but still present in the rare, this is less impossible,
 6  IV, 9|   movement upwards (for the rare is light, which is the reason
 7  IV, 9| reason why they say fire is rare); second, the void turns
 8  IV, 9|     same thing is dense and rare, and the two qualities have
 9  IV, 9|     dense is heavy, and the rare is light. [Again, as the
10  IV, 9|     in the dense and in the rare; for both the heavy and
11  IV, 9|  the light and the soft are rare; and weight and hardness
12  IV, 9|     separate element in the rare) or potentially, unless
13  IV, 9| void; for the dense and the rare are productive of locomotion