In this rapid course through all the forms of generation we see delineated the same laws by which nature rules the other functions. Gradually new forces appear and new organs are brought forth to represent the subdivision of work. First, it is the whole individual that generates, then an organ of the individual, then again two organs in the same individual, and again two organs in separate individuals. In the many forms of genesis, the unity of the plan is more than ever manifest, and we, the highest of all living creatures, while, like the amoeba, we have in our protoplasm and scattered all through the mass of our body the faculty to generate, recognize in man and woman the two distinct laboratories which prepare the seed and the human egg. While the pathology of love, in many cases of lasciviousness, shows the last declining remains of a promiscuous hermaphroditism, imagination, a forerunner of science, causes us to divine that in more complex creatures sexes may be more than two, and generation presents a deeper subdivision of work, in the same manner as in the cynical or skeptical distinctions between platonic and sensual loves and in the most daring polygamies of soul and senses we perceive in the distance other lights which disclose to us the horizon of new and monstrous generative possibilities, some of them reaching the suprasensible and some as base and brutal as the most repelling atavic regressions. When the science of the future will permit our posterity to connect all the phenomena of nature, from the most elementary to the most complex, from the simplest motion of a molecule to the flash of the most sublime genius, in an uninterrupted chain of facts, then perhaps the first origins of love will be sought in the elementary physics of dissimilar atoms which endeavor to find each other and combine, and with opposite motion generate the equilibrium. The positive electric body seeks the negative, the acid seeks the base, and in these conjunctions, with great development of light, heat and electricity, new bodies are formed, new equilibriums obtained; it seems that Nature renews her forces and, rejuvenescing, prepares herself for new combinations and new loves. And is not love perhaps the combination of two dissimilar atoms which seek each other and combine, notwithstanding all the adverse forces of heaven and earth? And in the same manner as the molecule of potassium snatches the oxygen away from water with a great development of light and heat, is not the union of those two molecules, which we call man and woman, accompanied by a hurricane of passion, by flashes of genius, by infinite glittering of flames and ardor? Do we not perceive a pandemonium of physical and psychical forces accumulating, battling and equilibrating around that point where a man and a woman are attracted toward each other, to rejuvenate the human matter and rekindle the torch of life?