This article concentrates on the final twenty years of Antonio de Viti de Marco's life, the years of the fascist dictatorship, in order to fill a gap in the knowledge of his activity and motivations. It brings together the limited infor-mation available, tracking down elements that explain his decision to withdraw into isolation. The article considers the main aspects marking this period of his life, namely: the antifascist who rarely had a chance to show himself; the economist, whose scientific work makes up the best-known part of his biography of this peri-od; the agriculturalist, whose role is linked to his anti-protectionist battle; and lastly the private man, who during these years went through a profound ordeal. The re-search explains the reasons for his long silence by revealing that there was not a single aspect in which De Viti was spared during the twenty years of fascism, nei-ther political, nor scientific, nor in economic policy, and not even in the private sphere