Have you considered for whom we hold these advantages in trust? They belong not merely to the seventy-five millions now within our borders, but to all who are to extend the fortunes and preserve the virtues of the Republic in the coming century. Their numbers cannot increase in the startling ratio this century has shown. If they did the population of the United States a hundred years hence would be over twelve hundred millions. That ratio is impossible, but nobody gives reasons why we should not increase half as fast. Suppose we do actually increase only one fourth as fast in the Twentieth Century as in the Nineteenth. To what height would not the three hundred millions of Americans whom even that ratio foretells bear up the seething industrial activities of the continent! To what corner of the world would they not need to carry their commerce? What demands on tropical productions would they not make? What outlets for their adventurous youth would they not require? With such a prospect before us, who thinks that we should shrink from an enlargement of our national sphere because of the limitations that bound, or the dangers that threatened, before railroads, before ocean steamers, before telegraphs and ocean cables, before the enormous development of our manufactures, and the training of executive and organizing faculties in our people on a constantly increasing scale for generations? Does the prospect alarm? Is it said that our Nation is already too great, that all its magnificent growth only adds to the conflicting interests that must eventually tear it asunder? What cement, then, like that of a great common interest beyond our borders, that touches not merely the conscience but the pocket and the pride of all alike, and marshals us in the face of the world, standing for our own?