of all civilized nations, should be indissoluble. In perfect harmony with this last condition is monogamy--the fundamental law of Christian wedlock. And even among the heathen nations of antiquity, though without the sanction of law, yet, nevertheless, under the influence of an instinctive sense of what is morally right and noble, monogamy had practically become the almost universal rule. Highly important to the welfare of the human race is the inviolable maintenance of this sacred law of marriage. So incalculable are the disasters which follow from its violation, that I can safely venture to assert, without fear of exaggeration, that a religion which would venture to desecrate or pull down the venerable sanctuary of wedlock, and consequently to expose the weaker sex to degradation and oppression, would even thereby bespeak its own falsity, and renounce all pretensions to a divine origin. Wherever, on the contrary, this noble institution and woman’s dignity are acknowledged and respected, there this union of souls in consecrated love operates, by the means of lasting personal intercourse, a reciprocal mental influence of the most diversified, salutary, and beautiful kind. And this influence tends to promote the development not only of the soul and character, but also of the mind or spirit. Accordingly in this, the first and the most intimate of all unions, all the three principles of human existence--body, soul, and spirit, or mind--alike meet together, and partake of a common evolution. And the result of this mutual influence relatively to the different characters of the mental capacities and consciousness of the two sexes, and the development of each produced thereby, forms, merely in its psychological aspect, a remarkable and pregnant phenomenon. Consistently, therefore, with the law I have proposed myself, in every case, to set out in my investigations from life itself, and from the very center thereof, I can not well avoid, while treating of the several grades of the development of man’s consciousness, to give some, though it must be but a partial, consideration to this interesting topic.