L eadership ultimately resides within the mystery of character. But character, like culture, is not immutable. It can grow and–with experience–change for the better. Joseph Nye, Jr. has written a profound essay that, at root, seeks to explore the character of an ideal twenty-first-century leader ["Picking A President," Issue #10]. His emphasis on contextual intelligence acts as a guide to flesh out and add structure to a truism that we all learn through life: Emotional intelligence is far more important than intellectual intelligence. Mastering complexity–which, as Nye intimates, is the real art of leadership nowadays–is not just a matter of a high IQ, but of temperament.