On the Historical Experience of the Dictatorship of the Proletariat (1956)". . . Stalin emphasized only technology, technical cadres. He wanted nothing but technology, nothing but cadre; no politics, no masses. . . . Stalin speaks only of the production relations, not of the superstructure, nor of the relationship between superstructure and economic base. . . . Stalin mentions economics only, not politics."
Concerning Economic Problems of Socialism in the U.S.S.R. (1958)