No one who has ever applied himself to philosophy ever becomes completely wicked; his mind becomes so deeply coloured with it, that its tints can never be entirely spoiled and blackened. In the next place, I ask whether this man of yours be ferocious merely in intent, or whether he breaks out into actual outrages upon mankind? You have instanced the tyrants Apollodorus and Phalaris; if the bad man restrains their evil likeness within himself, why should I not return his benefit to him, in order to set myself free from any further dealings with him? If, however, he not only delights in human blood, but feeds upon it; if he exercises his insatiable cruelty in the torture of persons of all ages, and his fury is not prompted by anger, but by a sort of delight in cruelty, if he cuts the throats of children before the eyes of their parents; if, not satisfied with merely killing his victims, he tortures them, and not only burns but actually roasts them; if his castle is always wet with freshly shed blood; then it is not enough not to return his benefits. All connection between me and such a man has been broken off by his destruction of the bonds of human society.