Ammianus Marcellinus Res Gestae 29.1.8

[8] And while they were in doubt who there was at the time that was superior to all in strength of character, it seemed to them that Theodorus ¹ surpassed all others; he had already gained second rank among the secretaries, and was in fact such a man as they thought him. For he was born of a clan famous in olden times in Gaul, liberally educated from earliest childhood, and so eminent for his modesty, good sense, refinement, charm, and learning that he always seemed superior to every office and rank that he was holding, ² and was dear alike to high and low. He was also almost the only man whose mouth was closed by no fear of danger, since he bridled his tongue and reflected on what he was going to say.