  In the History, Thucydides shows that power, if it is unrestrained by moderation and a sense of justice, brings about the uncontrolled desire for more power. There are no logical limits to the size of an empire. Drunk with the prospect of glory and gain, after conquering Melos, the Athenians engage in a war against Sicily. They pay no attention to the Melian argument that considerations of justice are useful to all in the longer run (5.90). And, as the Athenians overestimate their strength and in the end lose the war, their self-interested logic proves to be very shortsighted indeed.