This essay proposes an interpretation of the different identities of Italian socialism in the last years of the Stalinist era based on several categories of unedited sources. These different forms of socialism are described through the analysis of a local case study: the experience of the Sicilian provincial chief Giuseppe Garretto. He was an engineer, a writer for passion and an antifascist. Since the 1920s he has been a revolutionary who did not follow the Stalinist wave that deeply influenced the Psi during the Cold War. As an ally or an antagonist, Garretto frequented the most important national leaders of the Italian post-WWII socialism: Nenni, Basso, Panzieri, Morandi. Being a supporter of the anti-reformist purges within the Sicilian Psi and then a victim of the Stalinist repression against the heterodox militants, Garretto synthesises the panorama of militant passions of those socialisms. They emerge with their specific language, of which the essay emphasizes the semantic and stylistic features.
Keywords: Italian socialist party, stalinism, Cold War, political language, history of Italy, history of Sicily