This proverb is derived from the Greek, and applied to Theramenes, who was at first a mighty stickler for the thirty tyrants' authority: but when they began to abuse it by defending such outrageous practices, no man more violently opposed it than he; and this (says Potter) got him the nick-name of "Jack of both sides," from Cothurnus, which was a kind of shoe that fitted both feet. P.T.W.
PLAY OF "CAESAR IN EGYPT."
When the pack'd audience from their posts retir'd,
And Julius in a general hiss expir'd,
Sage Booth to Cibber cried, "Compute your gains;
These Egypt dogs, and their old dowdy queens,
But ill requite these habits and these scenes!
To rob Corneille for such a motley piece—