had been thrown across the Isthmus by the Peloponnesians, the Lacedaemonians would have been deserted by their allies, not voluntarily but of necessity, since these would have been conquered city after city by the naval force of the Barbarian, and so they would have been left alone: and having been left alone and having displayed great deeds of valour, they would have met their death nobly. Either they would have suffered this fate, or before this, seeing the other Hellenes also taking the side of the Medes, they would have made an agreement with Xerxes; and thus in either case Hellas would have come to be under the rule of the Persians: for as to the good to be got from the walls thrown across the Isthmus, I am unable to discover what it would have been, when the king had command of the sea. As it is however, if a man should say that the Athenians proved to be the saviours of Hellas, he would not fail to hit the truth; for to whichever side these turned, to that the balance was likely to incline: and these were they who, preferring that Hellas should continue to exist in freedom, roused up all of Hellas which remained, so much, that is, as had not gone over to the Medes, and (after the gods at least) these were they who repelled the king.