Book, Paragraph

 1   I,  1 |        nothing about nature. For primary cause constitutes the nature
 2  II,  1 |       are constituted out of the primary substances. The third and
 3  II,  1 |         originating cause is the primary efficient cause, which is
 4  II,  1 |       that the part which is the primary seat of these principles
 5  II,  8 | sensibility and chief of all the primary sensibility, which is that
 6  II,  8 |       that is it constitutes the primary organ of the sense; or it
 7  II,  10|        the reason being that the primary organ of this sense is not
 8 III,  4 |        must necessarily have one primary source. For it is preferable
 9 III,  4 |        rather than several. This primary source of the vessels is
10 III,  4 |        its position is that of a primary or dominating part. For
11 III,  4 |          origin and fountain, or primary receptacle, of the blood.
12 III,  4 |          receptacle, must be the primary source of sensation. And
13 III,  4 |         without a heart. For the primary source of blood must of
14 III,  4 |         deem the liver to be the primary organ either of the whole
15 III,  4 |         far from being that of a primary or dominating part; and,
16 III,  4 |        of the blood, as also the primary organ in other respects.
17 III,  4 |         be expected. For, if the primary or dominant part be diseased,