These various schools of ethics had a common failing by which they stood condemned as erroneous: they were constituted before the science of human nature had become positive. Thus utilitarian morality is quite deducible from a psychology such as that of Condillac: but this “metaphysical” psychology treated man chiefly as a reasoning and calculating being, and misunderstood the preponderance of the affective faculties. In the same way, the “german,” that is to say Cousin’s philosophy, represents the _ego_ as being free, of an absolute freedom, and as being subjected to no law whatever: hence a strange and metaphysical system of ethics of duty. Theological doctrines of ethics hitherto have been very superior to those which have been produced by philosophical speculation. The reason for this is simple. Without any scientific apparatus, religion implies a far more exact psychology than that of philosophers up to the present time. It deals with man “concrete” and real. It was bound not to misunderstand the relative importance of his faculties, and the respective power of his inclinations and his passions. The priest very often has a better knowledge of men than the metaphysician. Comte especially admires Christian morality or, more precisely, the teaching of this morality as it was given by the Catholic church in the Middle Ages. “All the different branches of this morality have received most important improvements from Catholicism.” In saying “Love thy neighbour as thyself,” in making charity the supreme virtue, in fighting against selfishness as the source of all vices, Christian morality has taught what above all other things must be engraved upon men’s hearts. Positive philosophy will use the same language. “For anyone who has gone deeply into the study of humanity, universal love as Catholicism conceived it is still more important than the intellect itself in the economy of our individual or social existence, because to the gain of each one and of all, love makes use even of the least of our mental faculties, while selfishness disfigures or paralyses even the best dispositions.”[323] But the greatest merit of Catholicism has been that it considered ethics as “the first of social necessities.” Everything is subordinated to it: it is subordinated to nothing. It dominates the entire life of man so as ceaselessly to direct and control all his actions. In ancient society, morals depended upon politics. In Christian society even politics borrows its principles from morals. That was the finest triumph of “Catholic wisdom,” which instituted a spiritual power independent of the temporal power.