"What is that unforgettable line?" So asks Winnie, the heroine of Samuel Beckett's Happy Days, enacting a long tradition of bulls in Irish literature and rhetoric. Defined as an apparently self-contradictory or nonsensical statement, the Irish bull has a long history in the national culture, especially on stage. In some ways, the bull foreshadowed Absurdist theatre: both suggest a deeper meaning for surface-level nonsense. Since the Renaissance,...