San Francisco before and after its recent earthquake--at this moment of writing ten days ago--scarcely presented a greater contrast of experience than that my day has known; and the political condition and balance of the world now is as different from that of the period of which I have been writing as the new city will be from the old one it will replace at the Golden Gate. Of this universal change and displacement the most significant factor--at least in our Western civilization--has been the establishment of the German Empire, with its ensuing commercial, maritime, and naval development. To it certainly we owe the military impulse which has been transmitted everywhere to the forces of sea and land--an impulse for which, in my judgment, too great gratitude cannot be felt. It has braced and organized Western civilization for an ordeal as yet dimly perceived. But between 1850 and 1860 long desuetude of war, and confident reliance upon the commercial progress which freedom of trade had brought in its train, especially to Great Britain, had induced the prevalent feeling that to-morrow would be as to-day, and much more abundant. This was too consonant to national temperament not to pervade America also; and it was promoted by a distance from Europe and her complications much greater than now exists, and by the consistent determination not to be implicated in her concerns. All these factors went to constitute the atmosphere of indifference to military affairs in general; and particularly to those external interests of which a navy is the outward and visible sign and champion.