The Roman History · Amm. 17.13.6

And as the emperor had foreseen that this might happen, he secretly divided his army into several squadrons, and by the rapidity of their movements hemmed in the barbarians between his own lines. And then, standing on a mound, with a few of his officers and a small body-guard, he gently admonished them not to give way to ferocity.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
Passage preview. Read in context for the complete text, notes and references.