Book 4
pr.64
And I will not conceal the fact that Cicero Top. xxvi. 97. himself holds that more qualities are required. For in addition to demanding that it should be plain, brief and credible, he would have it clear, characteristic and worthy of the occasion. But everything in a speech should be characteristic and worthy of the occasion as far as possible. Palpalility, as far as I understand the term, is no doubt a great virtue, when a truth requires not merely to be told, but to some extent obtruded, still it may be included under lucidity. Some, however, regard this quality as actually being injurious at times, on the ground that in certain cases it is desirable to obscure the truth. This contention is, however, absurd.
pr.65
For he who desires to obscure the situation, will state what is false in lieu of the truth, but must still strive to secure an appearance of palpability for the facts which he narrates.