The idea of asking for peace presented itself to nobody. Each rivalled the other in sacrifices and devotion. New legions were raised, and there were enrolled 8,000 slaves, who were restored to freedom after the first combat.[518] The treasury being empty, all the private fortunes were brought to its aid. The proprietors of slaves taken for the army, the farmers of the revenue charged with the furnishing of provisions, consented to be repaid only at the end of the war. Everybody, according to his means, maintained at his own expense freedmen to serve on the galleys. After the example of the Senate, widows and minors carried their gold and silver to the public treasury. It was forbidden for anybody to keep at home either jewels, plate, silver or copper money, above a certain value, and, by the law Oppia, even the toilette of the ladies was limited.[519] Lastly, the duration of family mourning for relatives slain before the enemy was restricted to thirty days.[520] After the victory of Cannæ it would have been more easy for Hannibal to march straight upon Rome than after Trasimenus; yet, since so great a captain did not think this possible to attempt, it is not uninteresting to inquire into his motives. In the first place, his principal force was in Numidian cavalry, which would have been useless in a siege;[521] then, he had generally the inferiority in attacking fortresses. Thus, after Trebia, he could not reduce Placentia;[522] after Trasimenus, he failed before Spoletum; three times he marched upon Naples, without venturing to attack it; later still, he was obliged to abandon the sieges of Nola, Cumæ, and Casilinum.[523] What, then, could be more natural than his hesitation to attack Rome, defended by a numerous population, accustomed to the use of arms? The most striking proof of the genius of Hannibal is the fact of his having remained sixteen years in Italy, left almost to his own forces, reduced to the necessity of recruiting his army solely among his new allies, and of subsisting at their expense, ill seconded by the Senate of his own country, having always to face at least two consular armies, and, lastly, shut up in the peninsula by the Roman fleets, which guarded its coasts to intercept reinforcements from Carthage. His constant thought, therefore, was to make himself master of some important points of the coast in order to open a communication with Africa. After Cannæ, he occupies Capua, seeks to gain the sea by Naples,[524] Cumæ, Puteoli; unable to effect these objects, he seizes upon Arpi and Salapia, on the eastern coast, where he hopes to meet the ambassadors of the King of Macedonia. He next makes Bruttium his base of operation, and his attempts are directed against the maritime places, now against Brundusium and Tarentum, now against Locri and Rhegium.