History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
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."
Thus the Athenians spoke. And when the Lacedaemonians had heard the charges brought by the allies against the Athenians, and what the latter said in reply, they caused all others to withdraw and deliberated by themselves on the situation before them.
And the opinions of the majority tended to the same conclusion, namely, that the Athenians were already guilty of injustice, and that they must go to war without delay. But Archidamus their king, a man reputed to be both sagacious and prudent, came forward and spoke as follows: