O sir, we quarrel in print, by the book; as you have books for good manners: I will name you the degrees. The first, the Retort Courteous; the second, the Quip Modest; the third, the Reply Churlish; the fourth, the Reproof Valiant; the fifth, the Countercheque Quarrelsome; the sixth, the Lie with Circumstance; the seventh, the Lie Direct.
All these you may avoid but the Lie Direct; and you may avoid that too, with an If. I knew when seven justices could not take up a quarrel, but when the parties were met themselves, one of them thought but of an If, as, ‘If you said so, then I said so;’ and they shook hands and swore brothers. Your If is the only peacemaker; much virtue in If.

(And, from the same scene, because I love it so)

He uses his folly like a stalking-horse and under the presentation of that he shoots his wit.