%0 Journal Article %T Ci¨ºncia e consci¨ºncia, conhecimento e liberdade %A Alves %A Luiz Roberto %J Estudos Avan£¿ados %D 2012 %I Universidade de S?o Paulo %R 10.1590/S0103-40142012000200022 %X 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. %K science and liberation %K rupture %K scientific thinking %K democratic society. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-40142012000200022&lng=en&nrm=iso&tlng=en