Stephen Walt: I am shocked and saddened by the sudden passing of my colleague Joseph Nye, who recruited me to Harvard a quarter-century ago. He was a highly accomplished scholar, an innovative Dean, and a devoted public servant. Also a very decent and humane man, who will be missed at Harvard and beyond.

I am shocked and saddened by the sudden passing of my colleague Joseph Nye, who recruited me to Harvard a quarter-century ago. He was a highly accomplished scholar, an innovative Dean, and a devoted public servant. Also a very decent and humane man, who will be missed at Harvard and beyond.