How can it be thought the ideas of Being and Nothingness in Sartre, as well as the notions of Nausea and Anguish and Engaged Intellectual in Sartrean existentialism for a reformulation in the scientific paradigms of the human sciences? What is the role of the full Freedom of the individual, argued by Sartre as a fundamental process of the human being and the constitution of the humanities, which, instead of proportioning dogmas, would allow full and wide debate, enabling individuals to construct and How can such theories help to reformulate the thinking of the human sciences?