Shakespeare's Romans are intensely concerned with "constancy." Geoffrey Miles traces the Stoic origins of this Roman principle of being "always the same" and explores the varying forms it takes in writers such as Cicero, Seneca, and Montaigne. Building on this genealogy of constancy, Miles reads Shakespeare's Roman plays as reworkings of three figures found in Plutarch: the constant Brutus, the inconstant Antony, and the obstinate Coriolanus. The...