The chances of the time favoured a military even more than a political career; the chief spheres of influence were the province and the camp, and it was in these that the earliest distinctions of Tiberius were won. When a lad of fifteen he had followed his brother-in-law Scipio to Africa, and had been the first to mount the walls of Carthage in the vain assault on the fortress of Megara.[316] He had won the approval of the commander by his discipline and courage, and left general regret amongst the army when he quitted the camp before the close of the campaign. But an experience as potent for the future as his first taste of war, must have been those hours of leisure spent in Scipio's tent.[317] If contact with the great commander aroused emulation, the talk on political questions of Scipio and his circle must have inspired profound reflection. Here he could find aspirations enough; all that was lacking was a leader to translate them into deeds. The quaestorship, the first round of the higher official ladder, found him attached to the consul Mancinus and destined for the ever-turbulent province of Spain. It was a fortunate chance, for here was the scene of his father's military and diplomatic triumphs. But the sequel was unexpected. He had gone to fulfil the duties of a subordinate; he suddenly found himself performing those of a commander-in-chief or of an accredited representative of the Roman people. The Numantines would treat only with a Gracchus, and the treaty that saved Roman lives but not Roman honour was felt to be really his work. In a moment he was involved in a political question that agitated the whole of Rome. The Numantine treaty was the topic of the day. Was it to be accepted or, if repudiated, should the authors of the disaster, the causes of the breach of faith, be surrendered in time-honoured fashion to the enemy as an expiation for the violated pledge? On the first point there was little hesitation; the senate decided for the nullity of the treaty, and it was likely that this view would be accepted by the people, if the measures against the ratifying officials were not made too stringent. For on this point there was a difference of opinion. The poorer classes, whose sons and brothers had been saved from death or captivity by the treaty, blamed Mancinus as the cause of the disaster, but were grateful to Tiberius as the author of the agreement. Others who had less to lose and could therefore afford to stand on principle, would have enforced the fullest rigour of the ancient rules and have delivered up the quaestor and tribunes with the defaulting general.[318] It was thought that the influence of Scipio, always great with the agricultural voters, might have availed to save even Mancinus, nay that, if he would, he might have got the peace confirmed.[319] But his efforts were believed to have been employed in favour of Tiberius. The matter ended in an illogical compromise. The