I end by suggesting what is to my mind the true moral of these speculations. The vanity of philosophising means the vanity of certain philosophical pretensions; of the chimerical belief that the philosopher lays down the first principles of belief in ethics or in other departments of life, in such a sense that the destinies of the race or of knowledge depend upon accepting and applying his principles. His function is a humbler one, though one of vast importance. The great philosophical systems have vanished, though they have cleared the air. They were primitive attempts at construction; results of the fact that we have to act before we can think; and to assume postulates which can only be verified or falsified by the slow experience of ages. But the process by which truth is advanced is not confined to the philosopher; or perhaps we should rather say that some sort of crude philosophy is embedded even in the feeblest and earliest speculations of mankind. Our thoughts are guided by an implicit logic long before we have even a conception of logic in the abstract, or have the least thought of codifying and tabulating its formulæ. So every savage who begins to make a tool is exemplifying some mechanical principle which will not be put into accurate and abstract language till countless generations have passed. Every one at the present day who is using his wits is philosophising after a fashion, and is contributing towards the advancement of philosophy. He is increasing the mass of still more or less chaotic knowledge, the whole of which is to that philosopher what the particular set of facts is to the student of physical science. The philosopher has not to evolve first principles out of himself, so much as to discover what are the principles which have been unconsciously applied; to eliminate the obsolete elements; to bring the new into harmony; to verify them, or describe how they may be verified; and so to work towards the unification and systematisation of knowledge in general. Probably he will make a great many blunders in his task; but it may be some comfort to reflect that even blunders are often useful, and that he is not in the terribly responsible position of really framing laws for the universe or for man, but only of clearing up or codifying the laws which are already in operation. FORGOTTEN BENEFACTORS.