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).
They are never protected by any buildings, but they avoid these like tombs, which are set apart from everyday use. For not even a hut thatched with reed can be found among them. But roaming at large amid the mountains and woods, they learn from the cradle to endure cold, hunger, and thirst. When away from their homes they never enter a house unless compelled by extreme necessity; for they think they are not safe when staying under a roof.
They dress in linen cloth or in the skins of field-mice sewn together, and they wear the same clothing indoors and out. But when they have once put their necks into a faded tunic, it is not taken off or changed until by long wear and tear it has been reduced to rags and fallen from them bit by bit.