Here, then, we are met by a serious difficulty. The construction of the objective basis for the Positive synthesis imposes two conditions which seem, at first sight, incompatible. On the one hand we must allow the intellect to be free, or else we shall not have the full benefit of its services; and, on the other, we must control its natural tendency to unlimited digressions. The problem was insoluble, so long as the study of the natural economy did not include Sociology. But as soon as the Positive spirit extends to the treatment of social questions, these at once take precedence of all others, and thus the moral point of view becomes paramount. Objective science, proceeding from without inwards, falls at last into natural harmony with the subjective or moral principle, the superiority of which it had for so long a time resisted. As a mere speculative question it may be considered as proved to the satisfaction of every true thinker, that the social point of view is logically and scientifically supreme over all others, being the only point from which all our scientific conceptions can be regarded as a whole. Yet its influence can never be injurious to the progress of other Positive studies; for these, whether for the sake of their method or of their subject matter, will always continue to be necessary as an introduction to the final science. Indeed the Positive system gives the highest sanction and the most powerful stimulus to all preliminary sciences, by insisting on the relation which each of them bears to the great whole, Humanity. Thus the foundation of social science bears out the statement made at the beginning of this work, that the intellect would, under Positivism, accept its proper position of subordination to the heart. The recognition of this, which is the subjective principle of Positivism, renders the construction of a complete system of human life possible. The antagonism which, since the close of the Middle Ages, has arisen between Reason and Feeling, was an anomalous though inevitable condition. It is now for ever at an end; and the only system which can really satisfy the wants of our nature, individually or collectively, is therefore ready for our acceptance. As long as the antagonism existed, it was hopeless to expect that Social Sympathy could do much to modify the preponderance of self-love in the affairs of life. But the case is different as soon as reason and sympathy are brought into active co-operation. Separately, their influence in our imperfect organization is very feeble; but combined it may extend indefinitely. It will never, indeed, be able to do away with the fact that practical life must, to a large extent, be regulated by interested motives; yet it may introduce a standard of morality inconceivably higher than any that has existed in the past, before these two modifying forces could be made to combine their action upon our stronger and lower instincts.