Most of the ingredients of a vision for this country have been with us for a long time. As the poet wrote, "The light we sought is shining still." That we have failed and fumbled in some of our attempts to achieve our ideals is obvious. But the great ideas still beckon—freedom, equality, justice, the release of human possibilities. The vision is to live up to the best in our past and to reach the goals we have yet to achieve—with respect to our domestic problems and our responsibilities worldwide.
—From the Preface to On Leadership