The Roman History · Amm. 26.6.2

When Julian invaded Persia he left him in Mesopotamia, in command of a strong division of troops, giving him Sebastian for his colleague with equal power; and he was enjoined (as an uncertain rumour whispered, for no certain authority for the statement could be produced) to be guided by the course of events, and if he should find the republic in a languid state, and in need of further aid, to cause himself without delay to be saluted as emperor.

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
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