Henry Kissinger has never seemed at home in the United States, although he has served in its highest councils and received its richest rewards. When I was one of his students at Harvard, we called him Henry, to distinguish him from professorial luminaries such as Galbraith, Riesman, and Schlesinger. He did not fit the insistent reasonableness of the Harvard faculty. His guttural voice, anxiety to please, mischievous, self-deprecating humour, and fearsome views on nuclear warfare made him an almost unbelievable figure of playful profundity.