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

What more? What if it is even absolutely impossible for there to be any real peace at all? For what sort of peace is that in which nothing can be granted to the man with whom one is making peace? Antonius has been invited to peace by us by many circumstances; but he has preferred war. Ambassadors were sent. I opposed it, indeed, but still they were sent. Commands were taken to him: he did not obey them. He was ordered not to besiege Brutus, and to retire from before Mutina. He attacked that town even more vigorously. And shall we send an embassy to treat of peace to a man who has rejected ambassadors of peace? Do we suppose that when we talk to him face to face he will be more moderate in his demands than he was when he sent commands to the senate! But at that time he demanded things which appeared indeed unreasonable, but still such as it might have been possible to concede; he had not at that time been branded by such heavy and such numerous decisions and condemnations of yours. At present he is demanding things which we can not by any possibility grant, unless we are willing first to confess ourselves defeated in war.