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

Caius Caesar, a young man, or, I should rather say, almost a boy, embued with an incredible and godlike degree of wisdom and valor, at the time when the frenzy of Antonius was at its height, and when his cruel and mischievous return from Brundusium was an object of apprehension to all, while we neither desired him to do so, nor thought of such a measure, nor ventured even to wish it (because it did not seem practicable), collected a most trustworthy army from the invincible body of veteran soldiers, and has spent his own patrimony in doing so. Although I have not used the expression which I ought,—for he has not spent it,—he has invested it in the safety of the republic. [4]

And although it is not possible to requite him with all the thanks to which he is entitled, still we ought to feel all the gratitude toward him which our minds are capable of conceiving. For who is so ignorant of public affairs, so entirely indifferent to all thoughts of the republic, as not to see that, if Marcus Antonius could have come with those forces which he made sure that he should have, from Brundusium to come, as he threatened, there would have been no description of cruelty which he would not have practiced? A man who in the house of his entertainer at Brundusium ordered so many most gallant men and virtuous citizens to be murdered, and whose wife's face was notoriously besprinkled with the blood of men dying at his and her feet. Who is there of us, or what good man is there at all, whom a man stained with this barbarity would ever have spared; especially as he was coming hither much more angry with all virtuous men than he had been with those whom he had massacred there? [5] And from this calamity Caesar has delivered the republic by his own individual prudence (and, indeed, there were no other means by which it could have been done). And if he had not been born in this republic we should, owing to the wickedness of Antonius, now have no republic at all.

For this is what I believe, this is my deliberate opinion, that if that one young man had not checked the violence and inhuman projects of that frantic man, the republic would have been utterly destroyed. And to him we must, O conscript fathers (for this is the first time, met in such a condition, that, owing to his good service, we are at liberty to say freely what we think and feel), we must, I say, this day give authority, so that he may be able to defend the republic, not because that defense has been voluntarily undertaken by him, but also because it has been entrusted to him by us.