We may now proceed to add that the city is prior in the order of nature to the family and the individual. The reason for this is that the whole is necessarily prior to the part. * If the whole body is destroyed, there will not be a foot or a hand, except in that ambiguous sense in which one uses the same word to indicate a different thing, as when one speaks of a ‘hand’ made of stone; for a hand, when destroyed [by the destruction of the whole body], will be no better than a stone ‘hand’. * All things derive their essential character from their function and their capacity; and it follows that if they are no longer fit to discharge their function, we ought not to say that they are still the same things, but only that, by an ambiguity, they still have the same names.