C. Julius Caesar, Gallic War

Then these leaders and chiefs of the Nervii, who had any intimacy and grounds of friendship with Cicero, say they desire to confer with him. When permission was granted, they recount the same things which Ambiorix had related to Titurius, namely, "that all Gaul was in arms, that the Germans had passed the Rhine , that the winter-quarters of Caesar and of the others were attacked." They report in addition also, about the death of Sabinus. They point to Ambiorix for the purpose of obtaining credence; "they are mistaken," say they, "if they hoped for any relief from those who distrust their own affairs; that they bear such feelings toward Cicero and the Roman people that they deny them nothing but winter-quarters, and are unwilling that the practice should become constant; that through their [the Nervii's] means it is possible for them [the Romans] to depart from their winter-quarters safely and to proceed without fear into whatever parts they desire." To these Cicero made only one reply: "that it is not the custom of the Roman people to accept any condition from an armed enemy: if they are willing to lay down their arms, they may employ him as their advocate and send embassadors to Caesar: that he believed, from his [Caesar's] justice, they would obtain the things which they might request."