War with Jugurtha was again declared; for it was one of the most prolific sources of a profitable job to those in power. The Consul, Spurius Posthumius Albinus, was despatched with an army to Africa; but he soon came home, like his predecessors, with a large fortune, which seemed to be the kind of fortune of war that attended all who went to fight against Numidia. He left the army under the guidance of his brother Aulus, who, with his officers, were easily bribed into accepting any terms, provided they were of a pecuniary nature, that Jugurtha proposed to them. The Senate, however, refused to ratify the dishonourable peace concluded by Aulus; and thus, by the somewhat dishonest process of repudiating the acts of an authorised agent, Rome was again free to make a further property of the Numidian sovereign. At last, however, the affair was placed in honourable hands, by the appointment of Metellus (Q. C.) to the command of the army. His probity placed him far above any bribe that Jugurtha could offer; and though it is a maxim with many, that every man has his price, it may be said of Metellus that his moral standard was too high for any pecuniary standard to be applied to it.
With the generosity of true genius, Metellus selected as his legate a man capable of sharing with himself any of the honours that might be gained in the wars about to be undertaken. This man was Caius Marius, who had been, in early life, a labourer; but, while working with the spade, he felt sure that something would eventually turn up in his favour. He had served as a common soldier, but proved himself no common man; and he rose, step by step, to a highly respectable position. Vanity, however, was one of his weak points, and he fell into the hands of an old Syrian fortune-teller, who resorted to all sorts of tricks to persuade him that he was destined for the highest honours. He mentioned his aspirations to Metellus, and hinted at the possibility of his obtaining the Consulship; but his superior officer burst into a loud laugh, which, instead of putting Marius out of conceit, put him further into it. He proceeded to Rome, and, by a series of popular speeches, in which he promised everything to the people, he, of course, gained their suffrages. Having obtained the Consulship, he was despatched to finish the war against Jugurtha; but Metellus, having first pretended that there was nothing more to be done, for that he had settled the whole business himself, resigned his post to Marius.