History of the Peloponnesian War

Most men rush into war and proceed to blows first, although that ought to be the last resort, and then, when they are in distress, at length have recourse to words.

But since we ourselves are not as yet involved in any such error and see that you are not, we urge you, while wise counsels are still a matter of free choice to both of us, not to violate the treaty or transgress your oaths, but to let our differences be settled by arbitration according to the agreement. But if you refuse, we shall invoke as witnesses the gods by whom our oaths were sworn, and shall endeavour to make reprisals on those who begin the war, following that path in which you have led the way."