On the False Embassy
Demosthenes
Demosthenes. Vol. II. De Corona, De Falsa Legatione, XVIII, XIX. Vince, C. A. and Vince, J. H., translators. Cambridge, MA: Harvard University Press, 1926 (1939 reprint).
But when he had reached Thermopylae, and when the Lacedaemonians, detecting the snare, had withdrawn, he sent Aeschines as his agent in advance for your deception, lest, when you discovered that he was acting in the interest of the Thebans, he should be involved once more in delays and fighting and waste of time with the Phocians resisting him, and you helping them. In this way he hoped to obtain complete mastery without a struggle. And so it fell out. Aeschines, then, must not escape punishment for deceiving you, merely because Philip deceived the Lacedaemonians and the Phocians. That would be unjust indeed.
If as an offset to the Phocians and Thermopylae and all our other losses he tells you that the city still retains the Chersonese, I adjure you not to accept that excuse. In addition to the wrongs he has done you by his embassy, you must not suffer him by his defence also to fasten upon the city the reproach that, while stealthily securing some of your own possessions, you made sacrifice of the safety of your allies. You did no such thing. Peace was concluded; the Chersonese was secure; and then for the four ensuing months the Phocians were not imperilled, until you were deceived, and the Phocians destroyed, by this man’s mendacity.