"You know what you have to do, if you would wipe out the reproach which rests upon you, and keep the respect of your faithful allies. Send an army into Attica, and compel the Athenians to withdraw their forces from Potidaea. And let it be done speedily, for while we are talking our kinsmen are perishing." It happened that an Athenian embassy was present in Sparta, having been sent there on some other business, and not for the purpose of representing Athens at the debate. But when they heard of the outcry which had been raised against their city, the envoys asked permission for one of their number to address the Spartan assembly, wishing to explain the true character and origin of the Athenian Empire, and to warn the Spartans against plunging the whole country into the horrors of civil war. Leave being granted, the Athenian orator entered on his subject by sketching the course of events for the last sixty years. Athens, he said, had twice saved Greece, first at Marathon, and afterwards at Salamis. On the first of these occasions she had stood almost alone against an overwhelming force of Persians; and ten years later, though betrayed by her allies, she had borne the brunt against the navy of Xerxes. Who, then, was worthier than she to hold empire over Greeks? That empire had been forced upon her by the inertness of Sparta, and by the cowardice and sloth of her own allies in the Delian league. The power thus gained had been used with moderation, in marked contrast to the previous tyranny of Persia exercised over the same cities, and the arrogance of Spartan officers when engaged on foreign service. But a light yoke, it would seem, was harder to bear than a heavy one; if Athens had openly oppressed her subjects, she would never have heard a murmur. Having thus tried to combat the prejudice against Athens, the orator addressed himself directly to the Spartans, and said: "Consider the awful responsibility which you will incur, if you suffer yourselves to be carried away by the invectives of your allies, and drive us against our will to tempt with you the dark uncertainties and perilous issues of war. There is still time for an amicable settlement of our differences: Athens is prepared to make all reasonable concessions, and to submit to arbitration, as the terms of the treaty direct. And if you decline to accept this offer, the guilt of the aggressor will lie with you."