Contemporaries also were quick at recognising their proteus in his many shapes, and their gossip gives a strong support to internal evidence, resting as it probably did on evidences which were not altogether internal.
"Daniel Defoe"
William Minto
He loved to call himself proteus, and, indeed, the strange vicissitudes of his career justified his assumption of the name.
"Roman Society from Nero to Marcus Aurelius"
Samuel Dill