Like many of their contemporaries in the field of psychological medicine (Ellenberger, 1970), Freud thought sexuality got an important role when you look at the pathogenesis (Freud, 1905) and, also, his first push idea, elaborated from Around three essays with the sexuality (Freud, 1905) and you can completely launched a decade later in the Intuition and their vicissitudes (Freud, 1915), created a beneficial dualism away from ego/intimate drives and that, according to Freud himself (Freud, 1913), corresponded toward two intuition mentioned above.