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Thus Ulysses, when he would awaken the courage of Achilles, in one of the tragedies of Sophocles, tells him, that it was not the business of a supper that put him in such a fret, as he pretended, but because he was now arrived within sight of the walls of Troy. And when Achilles, in a great chafe at the affront, swore he would sail back again with his squadron and leave him to himself, Ulysses came upon him again with this rejoinder: Come, sir, ’tis not for this you’d sail away; But Hector’s near, it is not safe to stay. And thus, by representing to the bold and valiant the danger of being reputed a coward, to the temperate and sober that of being thought a debauchee, and to the liberal and magnificent the chance of being called stingy and sordid, we spur them on to brave actions and divert them from base and ignominious ones.
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Indeed, when a thing is once done and past remedy, we ought to qualify and attemperate our reproofs, and commiserate rather than reprimand. But if it be a business of pure prevention, of stopping a friend in the career of his irregularities, our applications must be vehement, inexorable, and indefatigable; for this is the proper season for a man to show himself a true monitor and a friend indeed. But we see that even enemies reprove each other for faults already committed. As Diogenes said pertinently enough to this purpose, that he who would act wisely ought to be surrounded either with good friends or flagrant enemies; for the one always teach us well, and the other as constantly accuse us if we do ill.