In fact, the ambitious claims which, ever since the hopeless decline of the theological synthesis, have been advanced by the intellect, never were or could be realized. Their only value lay in their solvent action on the theological system when it had become hostile to progress. The intellect is intended for service, not for empire; when it imagines itself supreme, it is really only obeying the personal instead of the social instincts. It never acts independently of feeling, be that feeling good or bad. The first condition of command is force; now reason has but light; the impulse that moves it must come from elsewhere. The metaphysical Utopias, in which a life of pure contemplation is held out as the highest ideal, attract the notice of our men of science; but are really nothing but illusions of pride, or veils for dishonest schemes. True there is a genuine satisfaction in the act of discovering truth; but it is not sufficiently intense to be an habitual guide of conduct. Indeed, so feeble is our intellect, that the impulse of some passion is necessary to direct and sustain it in almost every effort. When the impulse comes from kindly feeling it attracts attention on account of its rarity or value; when it springs from the selfish motives of glory, ambition, or gain, it is too common to be remarked. This is usually the only difference between the two cases. It does indeed occasionally happen that the intellect is actuated by a sort of passion for truth in itself, without any mixture of pride or vanity. Yet, in this case, as in every other, there is intense egotism in exercising the mental powers irrespectively of all social objects. Positivism, as I shall afterwards explain, is even more severe than Catholicism in its condemnation of this type of character, whether in metaphysicians or in men of science. The true philosopher would consider it a most culpable abuse of the opportunities which civilization affords him for the sake of the welfare of society, in leading a speculative life. We have traced the Positive principle from its origin in the pursuits of active life, and have seen it extending successively to every department of speculation. We now find it, in its maturity, and that as a simple result of its strict adherence to fact, embracing the sphere of affection, and making that sphere the central point of its synthesis. It is henceforth a fundamental doctrine of Positivism, a doctrine of as great political as philosophical importance, that the Heart preponderates over the Intellect. [Under Theology the intellect was the slave of the heart; under Positivism, its servant]