If they march against our territory, we shall sail against theirs; and the devastation of a part of the Peloponnesus will be quite a different thing from that of tle whole of Attica. For they will be unable to get other territory in its place without fighting, while we leave an abundance of territory both in the islands and on the mainland.
A great thing, in truth, is the control of the sea. Just consider: if we were islanders, who would be more unassailable ? So, even now, we must, as near as may be, imagine ourselves such and relinquish our land and houses, but keep watch over the sea and the city; and we must not give way to resentment against the Peloponnesians on account of our losses and risk a decisive battle with them, far superior in numbers as they are. If we win we shall have to fight them again in undiminished number, and if we fail, our allies, the source of our strength, are lost to us as well; for they will not keep quiet when we are no longer able to proceed in arms against them. And we must not make lament for the loss of houses and land, but for men; for these things do not procure us men, but men these. Indeed, had I thought that I should persuade you, I should have urged you to go forth and lay them waste yourselves, and thus show the Peloponnesians that you will not, for the sake of such things, yield them obedience.