In the most inspiring speech of his career, Ted Kennedy once vowed: "For all those whose cares have been our concern, the work goes on, the cause endures, the hope still lives, and the dream shall never die." Unlike his martyred brothers, John and Robert, whose lives were cut off before the promise of a better future could be realized, Ted lived long enough to make many promises come true. During a career that spanned an astonishing half-century,...