That I may not have to revert to this matter again, it will be convenient to notice here those examples from Roman history which most merit attention. When Caius Manilius was in command of the legions encamped against Veii, a division of the Veientine army having got within the Roman intrenchments, Manilius ran forward with a company of his men to defend them, and, to prevent the escape of the Veientines, guarded all the approaches to the camp. The Veientines finding themselves thus shut in, began to fight with such fury that they slew Manilius, and would have destroyed all the rest of the Roman army, had not the prudence of one of the tribunes opened a way for the Veientines to retreat. Here we see that so long as necessity compelled, the Veientines fought most fiercely, but on finding a path opened for escape, preferred flight to combat. On another occasion when the Volscians and Equians passed with their armies across the Roman frontier, the consuls were sent out to oppose them, and an engagement ensued. It so happened that when the combat was at its height, the army of the Volscians, commanded by Vectius Mescius, suddenly found themselves shut in between their own camp, which a division of the Romans had occupied, and the body of the Roman army; when seeing that they must either perish or cut a way for themselves with their swords, Vectius said to them, “Come on, my men, here is no wall or rampart to be scaled: we fight man with man; in valour we are their equals, and necessity, that last and mightiest weapon, gives us the advantage.” Here, then, necessity is spoken of by Titus Livius as the last and mightiest weapon .
Camillus, the wisest and most prudent of all the Roman commanders, when he had got within the town of Veii with his army, to make its surrender easier and not to drive its inhabitants to desperation, called out to his men, so that the Veientines might hear, to spare all whom they