[pt] O propósito deste trabalho será o de compreender o pensamento internacional de Joaquim Nabuco e Oliveira Lima mediante a reconstrução e sistematização da visão de mundo desses protagonistas do pensamento internacional brasileiro entre as décadas de 1890 e 1910, momento que, ao nosso ver, abrigou o debate inaugural da diplomacia moderna do país. Esta dissertação analisará ainda a construção das estruturas cognitivas que incidiram sobre a agência desses personagens. Uma das hipóteses defendidas é a da co-constituição entre o pensamento internacional brasileiro e a tradição político-diplomática. As ideias e os projetos de inserção internacional defendidos por Nabuco e Oliveira Lima viriam a influenciar durante o século XX a forma pela qual a diplomacia brasileira atuaria, sob a forma de paradigmas ou mapas cognitivos. Enquanto o primeiro foi o precursor do americanismo, o segundo foi o pai do pensamento globalista na política externa brasileira. / [en] The purpose of this work will be to understand the international political thought of Joaquim Nabuco and Oliveira Lima through the reconstruction and systematization of the worldviews of these protagonists of the Brazilian international political thought between the decades of 1890 and 1910, period during which the debate of national modern diplomacy was, in our view, inaugurated. This dissertation will also analyze the construction of the cognitive structure that impinged on the agency of these figures. One of the hypotheses defended is the co-constitution between the Brazilian international thought and the political and diplomatic tradition. The ideas and the projects of international insertion advocated by Nabuco and Oliveira Lima would influence the way in which Brazilian diplomacy would operate, during the twentieth century, in the form of paradigms or cognitive maps. Whereas the former was the precursor of Americanism, the latter was the father of the Globalist thought in the Brazilian foreign policy.