Brooke Allen's sparkling new collection of essays considers the dysfunctional and apparently destructive nature of great talent. Ms. Allen shows how the incendiaries of the eighteenth and nineteenth centuries were, in real terms, far more daring and more disturbing to the moral and ideological systems of their time than is the modern mutineer, who stages his rebellion within a social framework that condones or at least pretends to condone rebellion. She finds it surprising that so many writers held on to artistic rectitude in the face of all-but-insuperable personal failings.