3 surviving letters between Ambrosius, Quaestor and Cassiodorus, spanning c. 522–522.
VARIAE, BOOK 8, LETTER 13
Senator [Cassiodorus], Praetorian Prefect, to Ambrosius, Vir Illustris, Acting Prefect.
Those who observe changes in the usual order of things are often troubled, because what runs counter to custom...