Though he seems born to diplomacy, David K.E. Bruce's initiation was not promising. Following World War I, he worked as a diplomatic courier. His assignment was to deliver a baby grand piano to a Y.M.C.A. club in Istanbul. En route, the piano was stolen and never reached its destination. Discouraged, Bruce temporarily abandoned any thoughts of a foreign-service career and returned home to enter law school.
That setback was almost the last in a distinguished career. The stylish, handsome Bruce, now 72, has all his life moved gracefully through decision-making circles, gravitating easily to positions of power. A natural arbiter, he remains...