Sexual inversion among Greek women offers more difficulties than we met with in the study of paiderastia. This is due, not to the absence of the phenomenon, but to the fact that feminine homosexual passions were never worked into the social system, never became educational and military agents. The Greeks accepted the fact that certain females are congenitally indifferent to the male sex, and appetitive of their own sex. This appears from the myth of Aristophanes in Plato's _Symposium_, which expresses in comic form their theory of sexual differentiation. There were originally human beings of three sexes: men, the offspring of the sun; women, the offspring of the earth; hermaphrodites, the offspring of the moon. They were round with two faces, four hands, four feet, and two sets of reproductive organs apiece. In the case of the third (hermaphroditic or lunar) sex, one set of reproductive organs was male, the other female. Zeus, on account of the insolence and vigour of these primitive human creatures, sliced them into halves. Since that time, the halves of each sort have always striven to unite with their corresponding halves, and have found some satisfaction in carnal congress--males with males, females with females, and (in the case of the lunar or hermaphroditic creatures) males and females with one another. Philosophically, then, the homosexual passion of female for female, and of male for male, was placed upon exactly the same footing as the heterosexual passion of each sex for its opposite. Greek logic admitted the homosexual female to equal rights with the homosexual male, and both to the same natural freedom as heterosexual individuals of either species.