At the time of new technological schemes and global risks, scientific thinking developed in the Brazilian experience celebrates a memorable text of little more than 40 years: Science and Liberation, written by the nuclear physicist J. Leite Lopes. This paper investigates this thought, which communicates with the critical scientific horrified by the rubble of postwar and design a vision of epistemological rupture in view of social reality. This movement becomes a proposal for a management of knowledge. The methodological approach of this essay seeks texts that bear witness to and from post-war twentieth century, and contributions from the natural sciences and culture aimed at building a democratic society. The work of Leite Lopes lies there like a bunch of languages in the service of social change and the effective development of Brazil and Latin America.
Science and liberation; Rupture; Scientific thinking; Democratic society