Book, Paragraph

 1      I, 2 | certainty is impossible and opinions are divided. This kind of
 2      I, 10|    once attended by healthy opinions and appetites in regard
 3      I, 15|    who have expressed their opinions about some disputed matter:
 4      I, 15|  some disputed matter: such opinions will be useful support for
 5     II, 1 |     considered the received opinions on which we may best base
 6     II, 1 |  convince our hearers-those opinions with which our enthymemes
 7     II, 4 |      while we respect their opinions, we need not blush before
 8     II, 6 |  for it is plain that their opinions about it are the opposite
 9     II, 6 |     before those upon whose opinions we quite look down as untrustworthy (
10     II, 21|    as a universal truth the opinions which they hold themselves
11     II, 22|      of our judges that the opinions put forward really are of
12     II, 25| syllogisms are the ordinary opinions of men, and such opinions
13     II, 25|   opinions of men, and such opinions often contradict each other.