Book 4
pr.93
But we must remember only to invent such things as cannot be checked by evidence: I refer to occasions when we make our own minds speak (and we are the only persons who are in their secret) or put words in the mouth of the dead (for what they say is not liable to contradiction) or again in the mouth of someone whose interests are identical with ours (for he will not contradict), or finally in the mouth of our opponent (for he will not be believed if he does deny).
pr.94
Glosses drawn from dreams and superstitions have long since lost their value, owing to the very ease with which they can be invented. But it will avail us little to use glosses in a statement of fact, unless they are consistent throughout the whole of our speech, more especially as certain things can only be proved by persistent assertion.
pr.95
Take for instance the case of the parasite who claims as his son a young man who has been thrice disinherited by a wealthy father and thrice restored to his own. He will be able to put forward as a gloss or plea that poverty was the reason why he exposed the child, that he assumed the role of a parasite because his son was in the house in question and, lastly, that the reason why the young man was thrice disinherited was simply that he was not the son of the man who disinherited him.
