It was the opinion of that most accomplished political philosopher, Burke, that 'politics ought to be adjusted not to human reasonings, but to human nature, of which reason is but a part, and by no means the greatest part,'--the meaning of which is, simply, that the reasonings do not comprehend, as premises, all the complicated facts which enter into any important political problem, and hence the conclusion in such cases cannot be absolutely certain, and ought not to be implicitly received. It would be extremely difficult to explain how politics could be adjusted to human nature without the exercise of reason, which alone can regulate the process of adjustment. But we may certainly claim that, in the lapse of nearly a century since Burke wrote, the reason has been considerably enlightened, and something more has been learned of human nature itself, its apparently capricious and irregular phenomena having been ascertained to be the subjects of systematic order, as complete as that which prevails in all other departments of nature. The laws of social existence and development have been to some extent discovered, and recognized as being uniform in their operation, so that the natural and necessary course of human events may be anticipated, though as yet in a dim and imperfect way. The present age is fruitful of many wonders; but the greatest of them all is this important truth, which has just begun fairly to dawn upon mankind. It is already so firmly established, that no intelligent man who is fully up with the knowledge of his epoch, can admit the least doubt that all events, however complicated, whether social, political, military, or of any other kind, are controlled by general laws, as uniform and certain in their operation as the laws of astronomy, of physics, or of chemistry. The complexity of conditions under which they operate, makes these laws extremely difficult of discovery and of application. But the infinite combinations of influences which press on minds of individual members of society, and make the acts of each one of them apparently uncertain and arbitrary, exhibit a truly wonderful degree of uniformity, when considered in their operation on the whole mass of a nation. It is by the investigation of these wide and general effects, that the great laws of human action and development are ascertained. Their actual existence is absolutely certain. But after all, in the present state of our knowledge, with all the light afforded by such history as we have of the past, and with all the experience of the present generation, the sum and substance of what we can claim is no more than this: that some influences of a social and political nature may be traced to their certain results, though, from the intricacy of all social facts, their vast extent in a great nation, and especially when international interests are concerned, and from our necessarily imperfect acquaintance with all these varied, multiplex, and