Monogamy, then, is one of the most precious gifts which the Middle Ages have bequeathed to Western Europe. The striking superiority of social life in the West is probably due to it more than to any other cause. Protestant countries have seriously impaired its value by their laws of divorce. But this aberration will hardly be permanent. It is alien to the purer feelings of women and of the people, and the mischief done by it is limited to the privileged classes. France is now threatened with a revival of the metaphysical delusions of the Revolution, and it is feared by some that the disastrous example of Germany in this respect will be imitated. But all such tendencies, being utterly inconsistent with the habits of modern life, will soon be checked by the sounder philosophical principles which have now arisen. The mode of resistance to these errors which Positivism adopts will render the struggle most useful in hastening the adoption of the true theory of marriage. The spirit of Positivism being always relative, concessions may be made to meet exceptional cases, without weakening or contradicting the principle; whereas the absolute character of theological doctrine was incompatible with concession. The rules of morality should be general and comprehensive; but in their practical application exceptions have often to be made. By no philosophy but the Positive can these two conditions be reconciled. [Perpetual widowhood] To the spirit of anarchy, however, Positivism yields nothing. The unity essential to marriage, it renders more complete than ever. It develops the principle of monogamy, by inculcating, not as a legal institution, but as moral duty, the perpetuity of widowhood. Affection so firmly concentrated has always been regarded with respect even on man’s side. But hitherto no religion has had sufficient purity or influence to secure its adoption. Positivism, however, from the completeness of its synthesis, and from the fact that its rules are invariably based on the laws of nature, will gain such influence, and we find little difficulty in inducing all natures of delicate feeling to accept this additional obligation. It follows from the very principle which to the Positivist is the object of all marriage, the raising and purifying of the heart. Unity of the tie which is already recognized as necessary in life, is not less so in death. Constancy in widowhood was once common among women; and if its moral beauty is less appreciated now, it is because all systematic morality has been forgotten. But it is none the less, as careful study of human nature will show, a most precious source of moral good, and one which is not beyond the reach of nobler natures, even in their youth. Voluntary widowhood, while it offers all the advantages which chastity can confer on the intellectual and physical as well as on the moral nature, is yet free from the moral dangers of celibacy. Constant adoration of one whom Death has implanted