the natural course of social phenomena will make them anxious to know the antecedents and consequences of these phenomena, so as to avoid all mischievous or useless interference. They will thus discover that Political Art is even more dependent than other arts, upon its corresponding Science. And then they will soon see that this science is no isolated department of knowledge, but that it involves preliminary study of Man and of the World. In this way they will pass downwards through the hierarchic scale of Positive conceptions, until they come back to the inorganic world, the sphere more immediately connected with their own special avocations. And thus they will reach the conclusion that Positivism is the only system which can satisfy either the intellectual or material wants of the people, since its subject-matter and its objects are identical with their own, and since, like themselves, it subordinates everything to social considerations. All that it claims is to present in a systematic form principles which they already hold instinctively. By co-ordinating these principles of morality and good sense, their value, whether in public or in private questions, is largely increased; and the union of the two forms of wisdom, theoretical and practical wisdom, is permanently secured. When all this is understood, the people will feel some shame at having entrusted questions of the greatest complexity to minds that have never quite comprehended the difference between a cubic inch and a cubic foot. As to men of science, in the common acceptation of the word, who are so respected by the middle classes, we need not be afraid of their gaining much influence with the people. They are alienated from them by their utter indifference to social questions; and before these their learned puerilities fade into insignificance. Absorbed in the details of their own special science, they are quite incapable of satisfying unsophisticated minds. What the people want is to have clear conceptions on all subjects, _des clartés de tout_, as Molière has it. Whenever the savants of our time are drawn by their foolish ambition into politics, ordinary men find to their surprise that, except in a few questions of limited extent and importance, their minds have become thoroughly narrow under the influence of the specializing system of which they are so proud. Positivism explains the mystery, by showing that, since the necessity for the specializing system now no longer exists, it naturally results if prolonged, in a sort of academic idiocy. During the last three centuries it did real service to society, by laying down the scientific groundwork for the renovation of Philosophy projected by Bacon and Descartes. But as soon as the groundwork was sufficiently finished to admit of the formation of true Science, that is, of Science viewed relatively to Humanity, the specializing method became retrograde. It ceased to be of any