Rosa Luxemburg said this quote
“ 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. ”