The result has been to make it evident that while modern discovery has immensely multiplied and magnified the marvels which have to be accounted for, it has disclosed nothing which can be supposed to account for them in a manner to satisfy our reason. So far as the forces of Nature are concerned, the mysteries that lie beyond are even darker than they were. The origin and nature of matter and force, the source of motion, of life, of sensation and consciousness, of rational intelligence and language, of Free-will, of the reign of law and order to which all Nature testifies,--all these are for Science utterly unsolved problems, which, as some amongst her teachers tell us, must remain for ever insoluble. Even less prospect, if possible, can there be that any mechanical forces will ever account for perception of the sublime and beautiful,--and above all--of the distinction between right and wrong. Here, then, Science stops,--confessing that she can be our guide no farther, and lending no colour whatever to the unscientific pretensions which are so noisily advanced by some persons in her name. Her domain is the world of sense, and it is evident that nothing existing within that realm can possibly furnish an explanation which will satisfy our intellectual need for causality. Are we therefore to say that we can know nothing concerning the First Cause to which the phenomena of the Universe are due? Such is the Agnostic's position. What we have no means of knowing, he says, we must not pretend to know. It were irrational and dishonest to do so. When Science fails us, the true wisdom is to profess ignorance,--thus only can our position still be scientific. But is such a principle itself scientific? Is it not a gratuitous and monstrous assumption that we can know nothing but that of which our senses directly tell us? That the Universe has a cause is no less certain than that the Universe exists, for of that cause it is the monument. And, as of the whole, so of every part or element which it contains, it is absolutely certain that there must be a cause, and one adequate to the production of what has actually been produced; for as the proverb says, "Nothing is to be got out of a sack but what is in it." From such conclusions there is no escape;--and since it is impossible to find the cause required within the world of material forces and sensible phenomena, it becomes no less obvious that it must lie beyond, across the frontier which nothing material can pass. * * * * *