This masterly retreat was followed up by a brilliant surprise of a division of the Roman army under the command of Cossinius. The night was just getting in, and the soldiers were resting from their day's march and from the labors of forming the encampment, when the Thracian fell upon them. Thus suddenly attacked, they fled, without making any show of resistance,--abandoning everything to the assailants. Cossinius himself, who was bathing, had time only to escape with his life. The Romans rallied, a battle ensued, and they were routed, Cossinius being among the slain. This action took place not far from the Aufidus, which had witnessed the slaughter of Cannae. Spartacus now considered his army fairly "blooded." It had routed a Roman detachment, and defeated a small army. Two Roman camps had fallen into its hands, under circumstances that gave indications of superior generalship, and several towns had been stormed. Though still deficient in arms, he resolved to attack Varinius. Sallust represents him as addressing his army before the battle, and telling them that they were about to enter, not upon a single action, but upon a long war,--that from success, then, would follow a series of victories,--and that therein lay their only salvation from a death at once excruciating and infamous. They must, he said, live upon victory after victory,--an expression that showed he had a clear comprehension of the nature of his situation. In the battle that followed, Varinius was beaten, unhorsed, and compelled to fly for his life. All his personal goods fell into the hands of Spartacus. His lictors, with the _fasces_, shared the same fate. Spartacus assumed the dress of the Roman, and all the ensigns of authority. He has been censured for this; but a little reflection ought to convince every one that he did not act from vanity, but from a profound appreciation of the state of things in Italy. The slaves, of which his army was composed, were accustomed to see the emblems of authority with which he was now clothed and surrounded in the possession of their masters alone; and when they beheld them on and about their chief, they were not only reminded of the governing power, but also of the overthrow of those who had therefore monopolized it. Spartacus was a statesman; and knew how to operate on the minds of the rude masses who followed him and obeyed his orders. The defeat of Varinius left the whole of Lower Lucania at the mercy of the gladiators. Spartacus now established posts at Metapontum and at Thurii. Here he labored, with unceasing energy and industry, to organize and discipline his men. Adopting various measures to prevent them from becoming enervated through the abundance in which they were revelling, he prohibited the use of money among them, and gave all that he himself had to relieve those who had suffered from the war. Some of his officers are said to have followed his example in making so great a sacrifice for the common good.