It [the proletariat] should and must at once undertake socialist measures in the most energetic, unyielding and unhesitant fashion, in other words, exercise a dictatorship, but a dictatorship of the class, not of a party or of a clique – dictatorship of the class, that means in the broadest possible form on the basis of the most active, unlimited participation of the mass of the people, of unlimited democracy.
Rosa Luxemburg, The Russian Revolution
communism, proletariat, socialism