Labor, then, after having distinguished capacities and arranged their equilibrium by the division of industries, completes the armament of intelligence, if I may venture to say so, by machinery. According to the testimony of history as well as according to analysis, and notwithstanding the anomalies caused by the antagonism of economic principles, intelligence differs in men, not by power, clearness, or reach, but, in the first place, by specialty, or, in the language of the schools, by qualitative determination, and, in the second place, by exercise and education. Hence, in the individual as in the collective man, intelligence is much more a faculty which comes, forms, and develops, qu{ae} fit, than an entity or entelechy which exists, wholly formed, prior to apprenticeship. Reason, by whatever name we call it,--genius, talent, industry,--is at the start a naked and inert potentiality, which gradually grows in size and strength, takes on color and form, and shades itself in an infinite variety of ways. By the importance of its acquirements, by its capital, in a word, the intelligence of one individual differs and will always differ from that of another; but, being a power equal in all at the beginning, social progress must consist in rendering it, by an ever increasing perfection of methods, again equal in all at the end. Otherwise labor would remain a privilege for some and a punishment for others. But the equilibrium of capacities, the prelude of which we have seen in the division of labor, does not fulfil the entire destiny of machinery, and the views of Providence extend far beyond. With the introduction of machinery into economy, wings are given to LIBERTY. The machine is the symbol of human liberty, the sign of our domination over nature, the attribute of our power, the expression of our right, the emblem of our personality. Liberty, intelligence,--those constitute the whole of man: for, if we brush aside as mystical and unintelligible all speculation concerning the human being considered from the point of view of substance (mind or matter), we have left only two categories of manifestations,--the first including all that we call sensations, volitions, passions, attractions, instincts, sentiments; the other, all phenomena classed under the heads of attention, perception, memory, imagination, comparison, judgment, reasoning, etc. As for the organic apparatus, very far from being the principle or base of these two orders of faculties, it must be considered as their synthetic and positive realization, their living and harmonious expression. For just as from the long-continued issue by humanity of its antagonistic principles must some day result social organization, so man must be conceived as the result of two series of potentialities.