History of the Peloponnesian War

For our fathers, when they undertook the Medes, did from less beginnings, nay abandoning the little they had, by wisdom rather than fortune, by courage rather than strength, both repel the barbarian and advance this state to the height it now is at. Of whom we ought not now to come short but rather to revenge us by all means upon our enemies, and do our best to deliver the state unimpaired by us to posterity.