Now, dividing the material of universal history among a certain number of frames, such as mathematics, natural history, social economy, etc., it will be found that each of these divisions contains also metaphysics. And it will be the same down to the last subdivision of the totality of history: so that entire philosophy lies at the bottom of every natural or industrial manifestation; that it is no respecter of degrees or qualities; that, to rise to its sublimest conceptions, all prototypes may be employed equally well; and, finally, that, all the postulates of reason meeting in the most modest industry as well as in the most general sciences, to make every artisan a philosopher,--that is, a generalizing and highly synthetic mind,--it would be enough to teach him--what? his profession. Hitherto, it is true, philosophy, like wealth, has been reserved for certain classes: we have the philosophy of history, the philosophy of law, and some other philosophies also; this is a sort of appropriation which, like many others of equally noble origin, must disappear. But, to consummate this immense equation, it is necessary to begin with the philosophy of labor, after which each laborer will be able to attempt in his turn the philosophy of his trade. Thus every product of art and industry, every political and religious constitution, like every creature organized or unorganized, being only a realization, a natural or practical application, of philosophy, the identity of the laws of nature and reason, of being and idea, is demonstrated; and when, for our own purpose, we establish the constant conformity of economic phenomena to the pure laws of thought, the equivalence of the real and the ideal in human facts, we only repeat in a particular case this eternal demonstration. What do we say, in fact?