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).
The natives of this realm were once powerful and noble, but a secret conspiracy armed their slaves for rebellion; and since with savages all right is commonly might, they vanquished their masters, being their equals in courage and far superior in number.