[As the date indicates, the essay was written at the time of the Revolution in Hawaii, six years before its annexation. The part of the essay preceding points out the predominant interest of the United States in the Islands owing to their control of our trade routes and naval approaches, and refers to the benefit to the world from British colonial expansion.—EDITOR.] But if a plea of the world’s welfare seem suspiciously like a cloak for national self-interest, let the latter be accepted frankly as the adequate motive which it assuredly is. Let us not shrink from pitting a broad self-interest against the narrow self-interest to which some would restrict us. The demands of our three great seaboards, the Atlantic, the Gulf, and the Pacific,—each for itself, and all for the strength that comes from drawing closer the ties between them,—are calling for the extension, through the Isthmian Canal, of that broad sea common along which, and along which alone, in all the ages prosperity has moved. Land carriage, always restricted and therefore always slow, toils enviously but hopelessly behind, vainly seeking to replace and supplant the royal highway of nature’s own making. Corporate interests, vigorous in that power of concentration which is the strength of armies and of minorities, may here withstand for a while the ill-organized strivings of the multitude, only dimly conscious of its wants; yet the latter, however temporarily opposed and baffled, is sure at last, like the blind forces of nature, to overwhelm all that stand in the way of its necessary progress. So the Isthmian Canal is an inevitable part in the future of the United States; yet one that cannot be separated from other necessary incidents of a policy dependent upon it, whose details cannot be foreseen exactly. But because the precise steps that hereafter may be opportune or necessary cannot yet be foretold certainly, is not a reason the less, but a reason the more, for establishing a principle of action which may serve to guide as opportunities arise. Let us start from the fundamental truth, warranted by history, that the control of the seas, and especially along the great lines drawn by national interest or national commerce, is the chief among the merely material elements in the power and prosperity of nations. It is so because the sea is the world’s great medium of circulation. From this necessarily follows the principle that, as subsidiary to such control, it is imperative to take possession, when it can be done righteously, of such maritime positions as contribute to secure command. If this principle be adopted, there will be no hesitation about taking the positions—and they are many—upon the approaches to the Isthmus, whose interests incline them to seek us. It has its application also to the present case of Hawaii.