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

But I see now what it is they mean: nor, in truth, do they use much disguise. They say that they are afraid how the veterans may endure the idea of Brutus having an army. As if there were any difference between the troops of Aulus Hirtius, of Caius Pansa, of Decimus Brutus, of Caius Caesar, and this army of Marcus Brutus. For if these four armies which I have mentioned are praised because they have taken up arms for the sake of the liberty of the Roman people, what reason is there why this army of Marcus Brutus should not be classed under the same head? Oh, but the very name of Marcus Brutus is unpopular among the veterans.—More than that of Decimus Brutus?—I think not; for although the action is common to both the Bruti, and although their share in the glory is equal, still those men who were indignant at that deed were more angry with Decimus Brutus, because they said, that it was more improper for it to be executed by him. What now are all those armies laboring at, except to effect the release of Decimus Brutus from a siege? And who are the commanders of those armies? Those men, I suppose, who wish the acts of Caius Caesar to be overturned, and the cause of the veterans to be betrayed.