A noble doubt perpetually suggests itself, whether this end be not the Final Cause of the Universe; and whether nature outwardly exists. It is a sufficient account of that Appearance we call the World, that God will teach a human mind, and so makes it the receiver of a certain number of congruent sensations, which we call sun and moon, man and woman, house and trade. In my utter impotence to test the authenticity of the report of my senses, to know whether the impressions they make on me correspond with outlying objects, what difference does it make, whether Orion is up there in heaven, or some god paints the image in the firmament of the soul? The relations of parts and the end of the whole remaining the same, what is the difference, whether land and sea interact, and worlds revolve and intermingle without number or end,--deep yawning under deep, and galaxy balancing galaxy, throughout absolute space,--or, whether, without relations of time and space, the same appearances are inscribed in the constant faith of man? Whether nature enjoy a substantial existence without, or is only in the apocalypse of the mind, it is alike useful and alike venerable to me. Be it what it may, it is ideal to me, so long as I cannot try the accuracy of my senses. The frivolous make themselves merry with the Ideal theory, if its consequences were burlesque; as if it affected the stability of nature. It surely does not. God never jests with us, and will not compromise the end of nature, by permitting any inconsequence in its procession. Any distrust of the permanence of laws, would paralyze the faculties of man. Their permanence is sacredly respected, and his faith therein is perfect. The wheels and springs of man are all set to the hypothesis of the permanence of nature. We are not built like a ship to be tossed, but like a house to stand. It is a natural consequence of this structure, that, so long as the active powers predominate over the reflective, we resist with indignation any hint that nature is more short-lived or mutable than spirit. The broker, the wheelwright, the carpenter, the toll-man, are much displeased at the intimation. But whilst we acquiesce entirely in the permanence of natural laws, the question of the absolute existence of nature still remains open. It is the uniform effect of culture on the human mind, not to shake our faith in the stability of particular phenomena, as of heat, water, azote; but to lead us to regard nature as a phenomenon, not a substance; to attribute necessary existence to spirit; to esteem nature as an accident and an effect.