Book 7.20
However, although this be so, and although I am freed from all obligation towards him, from the moment when, by outraging all laws, he rendered it impossible for any man to do him a wrong, nevertheless, I think I ought to make the following distinction in dealing with him. If my repayment of his benefit will neither increase nor maintain his powers of doing mischief to mankind, and is of such a character that I can return it to him without disadvantage to the public, I would return it: for instance, I would save the life of his infant child; for what harm can this benefit do to any of those who suffer from his cruelty? But I would not furnish him with money to pay his bodyguard. If he wishes for marbles, or fine clothes, the trappings of his luxury will harm no one; but with soldiers and arms I would not furnish him. If he demands, as a great boon, actors and courtesans and such things as will soften his savage nature, I would willingly bestow them upon him. I would not furnish him with triremes and brass-beaked ships of war, but I would send him fast sailing and luxuriously-fitted vessels, and all the toys of kings who take their pleasure on the sea. If his health was altogether despaired of, I would by the same act bestow a benefit on all men and return one to him; seeing that for such characters death is the only remedy, and that he who never will return to himself, had best leave himself. However, such wickedness as this is uncommon, and is always regarded as a portent, as when the earth opens, or when fires break forth from caves under the sea; so let us leave it, and speak of those vices which we can hate without shuddering at them. As for the ordinary bad man, whom I can find in the marketplace of any town, who is feared only by individuals, I would return to him a benefit which I had received from him. It is not right that I should profit by his wickedness; let me return what is not mine to its owner. Whether he be good or bad makes no difference; but I would consider the matter most carefully, if I were not returning but bestowing it.