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

[37] What honor, O conscript fathers, can be too great to be due to such a mighty service as this of Brutus, and to such important aid as he has afforded the republic? For if Gaul had been open to Marcus Antonius—if after having overwhelmed the municipal towns and colonies unprepared to resist him, he had been able to penetrate into that farther Gaul—what great danger would have hung over the republic! That most insane of men, that man so headlong and furious in all his courses,—would have been likely I suppose to hesitate at waging war against us not only with his own army but with all the savage troops of barbarism, so that even the wall of the Alps would not have enabled us to check his frenzy. These thanks then will be deservedly paid to Decimus Brutus, who, before any authority of yours had been interposed, acting on his own judgment and responsibility, refused to receive him as consul, but repelled him from Gaul as an enemy, and preferred to be besieged himself rather than to allow this city to be so. Let him therefore have, by your decree, an everlasting testimony to this most important and glorious action, and let Gaul,¹ which always is and has been a protection to this empire and to the general liberty be deservedly and truly praised for not having surrendered herself and her power to Antonius but for having opposed him with them.