_The process of sublimation is more difficult in the case of the normal homosexual than in the case of the normal heterosexual. That is why this type is extremely rare and why a thorough analysis always discloses typical neurotic reactions. The neurotic reactions of repression_ (Abwehr, Freud) _are anxiety, shame, disgust and hatred (or scorn). The heterosexual is inspired with disgust at any homosexual acts. That proves his affectively determined negative attitude. For disgust is but the obverse of attraction. The homosexual manifests the same feeling of disgust for woman, showing him to be a neurotic. (Or else he hates woman.) For the normal homosexual—if there be such a type—would be indifferent towards woman. These generalisations already show that the healthy person must act as a bisexual being._ We know only one race of people who recognised formally the bisexual nature of man: the Greeks. But we must recognise also that the Greeks had attained the highest level of physical and cultural development. We shall have to inquire into the reasons why homosexuality fell into such disrepute and why the example of the Greeks found no imitation among the moderns, despite the recognition accorded the tremendous cultural achievements of the ancient Greeks. That will be done later. We conclude: _There is no inborn homosexuality and no inborn heterosexuality. There is only bisexuality.[10] Monosexuality already involves a predisposition to neurosis, in many cases stands for the neurosis proper._ The theory is not a novel one. New is only its association with neurosis. The merit to have been the first to express it belongs to _Kiernan_ (_Medical Standard_, 1888). _Kiernan_ started with the fact that all lower animals are bisexual and conceived homosexuality as a retrogression to the primitive hermaphroditic form of animal existence. We must note this theory as we shall have occasion to revert to it when discussing the predisposition to neurosis. _Chevalier_ (_Inversion Sexuelle_, 1893) also begins his inquiry with a consideration of the aboriginal bisexuality of the fœtus. Two other investigators may be mentioned in this connection: _Lombroso_, to whom belongs the credit of having called attention to the manifestations of retrogression (_atavism_) and _Binet_, who maintains that homosexuality arises when the aboriginal undifferentiated sexual instinct (consequently the bisexual instinct) is aroused through some early experience in association with a person of the same sex. Here we have an adumbration of the theory of infantile trauma which plays such a tremendous role in _Freud’s_ work. In the following chapters a number of cases will be recorded clearly illustrating the latent influence of infantile experiences.