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Carl Gustav Jung (; German: [karl jUNG]; 26 July 1875 - 6 June 1961) was a Swiss psychiatrist and psychoanalyst who founded analytical psychology. His work has been influential not only in psychiatry but also in anthropology, archaeology, literature, philosophy, and religious studies. As a notable research scientist based at the famous Burgholzli hospital, under Eugen Bleuler, he came to the attention of the Viennese founder of psychoanalysis, Sigmund Freud.

Jung was a solitary and introverted child. From childhood, he believed that, like his mother, he had two personalities--a modern Swiss citizen and a personality more suited to the 18th century. "Personality Number 1", as he termed it, was a typical schoolboy living in the era of the time. "Personality Number 2" was a dignified, authoritative and influential man from the past. Although Jung was close to both parents, he was disappointed by his father's academic approach to faith.  A number of childhood memories made lifelong impressions on him. As a boy, he carved a tiny mannequin into the end of the wooden ruler from his pencil case and placed it inside the case. He added a stone, which he had painted into upper and lower halves, and hid the case in the attic. Periodically, he would return to the mannequin, often bringing tiny sheets of paper with messages inscribed on them in his own secret language. He later reflected that this ceremonial act brought him a feeling of inner peace and security. Years later, he discovered similarities between his personal experience and the practices associated with totems in indigenous cultures, such as the collection of soul-stones near Arlesheim or the tjurungas of Australia. He concluded that his intuitive ceremonial act was an unconscious ritual, which he had practiced in a way that was strikingly similar to those in distant locations which he, as a young boy, knew nothing about. His observations about symbols, archetypes, and the collective unconscious were inspired, in part, by these early experiences combined with his later research.  At the age of 12, shortly before the end of his first year at the Humanistisches Gymnasium in Basel, Jung was pushed to the ground by another boy so hard that he momentarily lost consciousness. (Jung later recognized that the incident was his fault, indirectly.) A thought then came to him--"now you won't have to go to school anymore." From then on, whenever he walked to school or began homework, he fainted. He remained at home for the next six months until he overheard his father speaking hurriedly to a visitor about the boy's future ability to support himself. They suspected he had epilepsy. Confronted with the reality of his family's poverty, he realized the need for academic excellence. He went into his father's study and began poring over Latin grammar. He fainted three more times but eventually overcame the urge and did not faint again. This event, Jung later recalled, "was when I learned what a neurosis is."

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Carl Jung