M. Tullius Cicero, Orations, The fourteen orations against Marcus Antonius (Philippics)
C. D. Yonge, Ed.

Why need I speak of Hirtius? who, the moment he heard of what was going on, with incredible promptness and courage led forth two legions out of the camp; that noble fourth legion, which, having deserted Antonius, formerly united itself to the Martial legion; and the seventh, which, consisting wholly of veterans, gave proof in that battle that the name of the senate and people of Rome was dear to those soldiers who preserved the recollection of the kindness of Caesar. With these twenty cohorts, with no cavalry, while Hirtius himself was bearing the eagle of the fourth legion,—and we never heard of a more noble office being assumed by any general,—he fought with the three legions of Antonius and with his cavalry, and overthrew, and routed, and put to the sword those impious men who were the real enemies to this temple of the all good and all powerful Jupiter, and to the rest of the temples of the immortal gods, and the houses of the city, and the freedom of the Roman people, and our lives and actual existence; so that that chief and leader of robbers fled away with a very few followers, concealed by the darkness of night, and frightened out of all his senses.

Oh what a most blessed day was that, which, while the carcasses of those parricidal traitors were strewed about every where, beheld Antonius flying with a few followers, before he reached his place of concealment.