History of the Peloponnesian War

Thucydides

Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.

but considering, allies, that we have reached a point of necessity, and, moreover, that what is mentioned is the best course, vote for the war; not being afraid of the immediate danger, but setting your hearts on the more lasting peace that will result from it. For it is by war that peace is rendered the more stable; but to refuse to pass from a state of quiet to one of war is not equally free from danger.

Being of opinion then that the tyrant state which has set itself up in Greece, has set itself up against all alike, so that it already rules over some, and is designing to rule over others, let us go against it and reduce it; and live ourselves free from danger in future, and give freedom to the Greeks who are now enslaved.
To this effect spoke the Corinthians.