For this reason, also, the characteristic free love of the Bohemians of Paris during the second half of the nineteenth century, and more especially during the period 1830 to 1860, can only be regarded as a truly poetic love-idyll, when compared with that grand and earnest love consecrated wholly to =work=, and to the =inward spiritual development= which presents itself to modern humanity as an ideal love, as the united conquest of existence. Grisette love, which Sebastian Mercier described with great force, and which found its classic representation in Henry Murger’s “Vie de Bohème,” was characterized by the enduring life-in-common of the loving couples, who belonged for the most part to the circle of artists and students. Thus it stood high as heaven above our modern “intimacy,” which, for the most part, has a quite transitory character; and yet the Bohemian free love corresponded in no way to the conception and ideal of free love as a community of spirit and of life. The development of modern civilization, in association with the awakening of individualism, and with the economic revolution of our time, has created entirely new foundations for sexual relationships, and has made continually more apparent the injurious and destructive effects of our long outworn sexual morality. These changes have taught us to understand that in the so-called social question the sexual problem possesses as much importance as the economic problem--perhaps more. They have shown us the necessity for a new love of the future, for the reason that to cling to the old, outlived forms would be equivalent to a continuous increase in sexual corruption in the widest sense of the word, combined with a general disease contamination of civilized nations--as the threatening spread of prostitution, and more especially of secret prostitution, and the increased diffusion of venereal diseases, demonstrate before our eyes. Almost at the same time, during recent years, among the various civilized nations of Europe there have originated efforts for a radical transformation of conventional sexual morality, and for a reform, adapted to modern conditions, of marriage and of the entire amatory life. In France, England, Sweden, and Germany, writers have appeared, producing books, many of which have been important, full of matter, and comprehensive, entirely devoted to this object. Societies for marriage reform and sexual reform have been founded in North America, France, Austria, and Germany; parliamentary commissions for the investigation of these questions have been established. Several newspapers have been founded for the reform of sexual ethics. In short, a general interest has been aroused in this central question of life, and theoretical and practical activity have been directed towards its solution.