History of the Peloponnesian War

Thus the Melians answered. To which the Athenians, the conference being already broken off, replied thus: You are the only men, as it seemeth to us, by this consultation, that think future things more certain than things seen, and behold things doubtful, through desire to have them true, as if they were already come to pass. As you attribute and trust the most unto the Lacedaemonians, and to fortune and hopes, so will you be the most deceived.

This said, the Athenian ambassadors departed to their camp. And the commanders, seeing that the Melians stood out, fell presently to the war, and dividing the work among the several cities, encompassed the city of the Melians with a wall.

The Athenians afterwards left some forces of their own and of their confederates for a guard both by sea and land, and with the greatest part of their army went home. The rest that were left besieged the place.