Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
While these works were being pushed on with diligence and success, Hariobaudes returned after examining into everything, and reported what he had learned. After his arrival all came at top speed to Mayence; and there, when Florentius and Lupicinus (successor to Severus) strongly insisted that they ought to build a bridge at that place and cross the river,[*](See § 9, below.) Caesar stoutly opposed, declaring that they ought not to set foot in the lands of those who had submitted, for fear that (as often happens) through the rudeness of the soldiers, destroying everything in their way, the treaties might be abruptly broken.
However, the Alamanni as a whole, against whom our army was marching, thinking danger to be close at hand, with threats warned king
Therefore for a twofold reason what Caesar had advised seemed fitting, namely, that they should not ravage the lands of peaceful natives, nor against the opposition of a most warlike people construct the bridge with loss of life to many of our men, but should go[*](Text and exact meaning are uncertain; see crit. note.) to the place best suited for building a bridge.