Plutarch, De sera numinis vindicta
Goodwin, Ed.

Not but that there is a reason ready at hand for the public punishments showered down from heaven upon particular cities. For a city is a kind of entire thing and continued body, a certain sort of creature, never subject to the changes and alterations of age, nor varying through process of time from one thing to another, but always sympathizing and in unity with itself, and receiving the punishment or reward of whatever it does or has ever acted in common, so long as the community, which makes it a body and binds it together with the mutual bands of human benefit, preserves its unity. For he that goes about of one city to make many, and perhaps an infinite number, by distinguishing the intervals of time, seems to be like a person who would make several of one single man, because he is now grown elderly who before was a young man, and before that a mere stripling. Or rather, it resembles the method of disputing amongst the Epicharmians, the first authors of that manner of arguing called the increaser. For example: he that formerly ran in debt, although he never paid it, owes nothing now, as being become another man; and he that was invited yesterday to supper comes the next night an unbidden guest, for that he is quite another person. And indeed the distinctions of ages cause greater alterations in every one of us than commonly they do in cities. For he that has seen Athens may know it again thirty years after; the present manners, motions, pastimes, serious studies, their familiarities and marks of their displeasure, little or nothing differing from what formerly they were. But after a long absence there is many a man who, meeting his own familiar friend, hardly knows him again, by reason of the great alteration of his countenance and the change of his manners, which are so easily subject to the alterations of language, labor, and employment, all manner of accidents, and mutation of laws, that even they who are most usually conversant with him admire [p. 167] to see the strangeness and novelty of the change; and yet the man is reputed still to be the same from his birth to his decease. In the same manner does a city still remain the same; and for that reason we think it but justice, that a city should as well be obnoxious to the blame and reproach of its ancient inhabitants, as participate the glory of their former puissance and renown; else we shall throw every thing before we know it into the river of Heraclitus, into which (he says) no one can step twice,¹ since Nature by her changes is ever altering and transforming all things.