This incident may have led Sumner to the choice of a subject for his Fourth of July oration in 1845. The title of this address was "The True Grandeur of Nations," but its real object was one which Sumner always had at heart, and never relinquished the hope of,--namely, the establishment of an international tribunal, which should possess jurisdiction over the differences and quarrels between nations, and so bring warfare forever to an end. The plan is an impracticable one, because the decisions of a court only have validity if it is able to enforce them, and how could the decisions of an international tribunal have value in case the parties concerned declined to accept them? It would only result in waging war in order to prevent war. Yet, of all the Fourth of July orations that were delivered in the nineteenth century, Sumner's and Webster's are the only two that have survived; and the "True Grandeur of Nations" has recently been published by the London Peace Society as an argument in favor of their philanthropic movement. Sumner was now in the prime of manhood, and a rarely handsome man. He had an heroic figure, six feet two inches in height, and well proportioned in all respects. His features, too large and heavy in his youth, had become strong and regular, and although he had not acquired that leonine look of reserved power with which he confronted the United States Senate, his expression was frank and fearless. As L. Maria Child, who heard him frequently, said, he seemed to be as much in his place on the platform as a statue on its pedestal. His gestures had not the natural grace of Phillips's or the more studied elegance of Everett, but he atoned for these deficiencies by the manly earnestness of his delivery. He made an impression on the highly cultivated men and women who composed his audience which they always remembered. The question has often been raised by the older abolitionists, "Why did not Sumner take an earlier interest in the anti-slavery struggle?" The answer is twofold. That he did not join the Free-soilers in 1844 was most probably owing to the influence of Judge Story, who had already marked Sumner out for the Supreme Bench, and wished him to concentrate his energies in that direction. His friends, too, at this time--Hillard, Felton, Liebe, and even Longfellow--were either opposed to introducing the slavery question into politics or practically indifferent to it.