Sec. XV. "Moreover the public punishments of cities by the gods admits of a just defence. For a city is one continuous entity, a sort of creature that never changes from age, or becomes different by time, but is ever sympathetic with and conformable to itself, and is answerable for whatever it does or has done for the public weal, as long as the community by its union and federal bonds preserves its unity. For he that would make several, or rather any quantity of, cities out of one by process of time would be like a person who made one human being several, by regarding him now as an old man, now as a young man, now as a stripling. Or rather this kind of reasoning resembles the arguments of Epicharmus, from whom the sophists borrowed the piled-up method of reasoning,[851] for example, he incurred the debt long ago, so he does not owe it now, being a different person, or, he was invited to dinner yesterday, but he comes uninvited to-day, for he is another person. And yet age produces greater changes in any individual than it does commonly in cities. For any one would recognize Athens again if he had not seen it for thirty years, for the present habits and feelings of the people there, their business, amusements, likes and dislikes, are just what they were long ago; whereas a man's friend or acquaintance meeting him after some time would hardly recognize his appearance, for the change of character easily introduced by every thought and deed, feeling and custom, produce a wonderful strangeness and novelty in the same person. And yet a man is reckoned to be the same person from birth to death, and similarly we think it right for a city always remaining the same to be liable to reproach for the ill deeds of its former inhabitants, on the same principle as it enjoys its ancient glory and power; or shall we, without being aware of it, throw everything into Heraclitus' river, into which he says a person cannot step twice,[852] since nature is ever changing and altering everything?"