History of the Peloponnesian War

After this, Brasidas with his army came down nearer to the sea and to the city of Megara, and having seized on a place of advantage, set his army in battle array and stood still. For they thought the Athenians would be assailants, and knew the Megareans stood observing whether side should have the victory, and that it must needs fall out well for them both ways;

first, because they should not be the assailant and voluntarily begin the battle and danger, since having showed themselves ready to fight, the victory must also justly be attributed to them without their labour;