Melanie Klein!

Melanie Klein was an Austrian psychoanalyst. She was born in Vienna in 1882. Klein was a pioneer in child analysis. She developed therapeutic techniques for children that had a significant impact on child psychology and contemporary psychoanalysis. Until that moment, other analysts considered children under 7 as unsuitable for analysis. However, she went further. She was not only revolutionary in analytical practice, also was in theory.

Until that time, Freud and his followers, were the most important ideologist psychoanalytic theory. Klein challenged this conformism. She generated a rupture in the exploration of Oedipus, the ghost, the language and pre-language. Klein investigates the deepest of the infancy, who is describes as inhibited, psychotic and autistic. Her theory was constantly refuted by male referents.

In 1932 published "The Psychoanalysis of Children" the most important work published by a member of the British Society. This work developed two important concepts: the paranoid-schizoid position and the depressive position. These are early stages of infantile development that have influence in the adult development.

Personally, Melanie Klein is a founder of feminist ideas because through his theory, she transgressed a lot orthodox male ideas, such as "penis envy".  Klein, unlike Freud, asserts that since the birth there is feminine position in women.