Our material prosperity for nearly half a century has been so unparalleled, that the minds of men have become gradually more and more absorbed in matters of personal concern; and our institutions have practically worked so well and so easily, that we have learned to trust in our luck, and to take the permanence of our government for granted. The country has been divided on questions of temporary policy, and the people have been drilled to a wonderful discipline in the manoeuvres of party-tactics; but no crisis has arisen to force upon them a consideration of the fundamental principles of our system, or to arouse in them a sense of national unity, and make them feel that patriotism was anything more than a pleasing sentiment,--half Fourth of July and half Eighth of January,--a feeble reminiscence, rather than a living fact with a direct bearing on the national well-being. We have had long experience of that unmemorable felicity which consists in having no history, so far as history is made up of battles, revolutions, and changes of dynasty; but the present generation has never been called upon to learn that deepest lesson of politics which is taught by a common danger, throwing the people back on their national instincts, and superseding party-leaders, the peddlers of chicane, with men adequate to great occasions and dealers in destiny. Such a crisis is now upon us; and if the virtue of the people make up for the imbecility of the Executive, as we have little doubt that it will, if the public spirit of the whole country be awakened in time by the common peril, the present trial will leave the nation stronger than ever, and more alive to its privileges and the duties they imply. We shall have learned what is meant by a government of laws, and that allegiance to the sober will of the majority, concentrated in established forms and distributed by legitimate channels, is all that renders democracy possible, is its only conservative principle, the only thing that has made and can keep us a powerful nation instead of a brawling mob. The theory, that the best government is that which governs least, seems to have been accepted literally by Mr. Buchanan, without considering the qualifications to which all general propositions are subject. His course of conduct has shown up its absurdity, in cases where prompt action is required, as effectually as Buckingham turned into ridicule the famous verse,-- "My wound is great, because it is so small," by instantly adding,-- "Then it were greater, were it none at all."