Freud and Jung Both Sigmund Freud and Carl Jung are famous psychoanalysists with unique approaches to personality. At one point they shared many of the same theories and had a deep friendship. In fact, Jung was to be heir to Freud's position as president of the International Psychoanalytic Association. However, Jung developed several new theories and disagreements with Freud. After years of friendship the pair parted in 1913. There were three main areas of personality which Jung disagreed with Freud on--the role of sexuality, temporal forces that influence personality, and the unconscious. The role of sexuali