In finishing the correction of the last proofs of this sketch, I perceive that some of those who read it may suppose that I planned to write a deliberate eulogy of Theodore Roosevelt. This is not true. I knew him for forty years, but I never followed his political leadership. Our political differences, however, never lessened our personal friendship. Sometimes long intervals elapsed between our meetings, but when we met it was always with the same intimacy, and when we wrote it was with the same candor. I count it fortunate for me that during the last ten years of his life, I was thrown more with Roosevelt than during all the earlier period; and so I was able to observe him, to know his motives, and to study his character during the chief crises of his later career, when what he thought and did became an integral part of the development of the United States.