Psychology and economics are Stalin's favorable winds. He is also the party 'boss.' But he is, in addition, the Soviet Union's most striking personality.
— Louis Fischer
For dynamic energy, driving force, and discipline, the Russian Communist Party is unique the world over, perhaps even throughout history.
What is the secret of Stalin's unquestioned strength? He controls every wheel and screw of the party machine, which is the source of authority and power in the Soviet Union.