He came from a Jewish working-class family. Mitin became a member of the
Russian Communist Party (Bolsheviks) in 1919. In the years 1925-1929 he studied philosophy at the
Institute of Red Professors, which had the responsibility for educating a new Soviet intelligentsia. In the years 1939-1961 he was a member of the
Central Committee of the Communist Party of the Soviet Union and during the period 1950-1962 deputy of the
Supreme Soviet of the USSR. From 1939, for five years he was director of the
Institute of Marxism–Leninism of the
CPSU Central Committee. From 1944 to 1950 he served on the editorial board of the journal
Bolshevik (
Большевик). From 1950 to 1956 he worked in Bucharest as the editor-in-chief of the official newspaper of the Cominfirm, ''
For a Lasting Peace, for a People's Democracy!''. Mitin died in January 1987 and was buried at the
Novodevichy Cemetery in Moscow. ==New philosophy==