is owing to its influence that the central point of the new synthesis is placed in our moral rather than our intellectual nature; and this, in spite of every prejudice and habit of thought that has been formed during the revolutionary period of the last five centuries. And while in this, which is the primary condition of social organization, Positivism, proves more efficient than Theology, it at the same time terminates the disunion which has existed so long between the intellect and the heart. For it follows logically from its principles, and also from the whole spirit of the system, that the intellect shall be free to exercise its full share of influence in every department of human life. When it is said that the intellect should be subordinate to the heart, what is meant is, that the intellect should devote itself exclusively to the problems which the heart suggests, the ultimate object being to find proper satisfaction for our various wants. Without this limitation, experience has shown too clearly that it would almost always follow its natural bent for useless or insoluble questions, which are the most plentiful and the easiest to deal with. But when any problem of a legitimate kind has been once proposed, it is the sole judge of the method to be pursued, and of the utility of the results obtained. Its province is to inquire into the present, in order to foresee the future, and to discover the means of improving it. In this province it is not to be interfered with. In a word the intellect is to be the servant of the heart, not its slave. Under these two correlative conditions the elements of our nature will at last be brought into harmony. The equilibrium of these two elements, once established, is in little danger of being disturbed. For since it is equally favourable to both of them, both will be interested in maintaining it. The fact that Reason in modern times has become habituated to revolt, is no ground for supposing that it will always retain its revolutionary character, even when its legitimate claims have been fully satisfied. Supposing the case to arise, however, society, as I shall show afterwards, would not be without the means of repressing any pretensions that were subversive of order. There is another point of view which may assure us that the position given to the heart under the new system will involve no danger to the growth of intellect. Love, when real, ever desires light, in order to attain its ends. The influence of true feeling is as favourable to sound thought as to wise activity. [The subordination of the intellect to the heart is the _Subjective Principle_ of Positivism]