"The Quality of Mercy": A Shakespearean theme

Most authors have a "signature moment," a theme or scene that reoccurs in their work as if they're exploring it from every angle, and Robert Wiltenburg believes that the quintessential Shakespearean theme is mercy. Wiltenburg, the former dean of University College and an adjunct associate professor of English at Washington University in St. Louis, takes us through Shakespeare's comedies, tragedies, and romances to show how mercy evolves in each genre, highlighting great triumphs--and disasters--along the way.