The political mentality called reformism has debilitated the workers’ movement all over the world and in every period; therefore it has been a subject of deep discussions among Marxist ranks. Beginning with the founders of Marxism, Lenin and other revolutionary leaders analysed the political meaning, social roots and destructive effects of reformism. In the circular letter dated 17-18 September 1879 and adressed to the leading cadre of the German Social Democratic Party, Marx and Engels berated the party leaders for their reformist approach. Those reformist socialists were occupied with...