"Without democracy there cannot be any correct centralism because people’s ideas differ, and if their understanding of things lacks unity then centralism cannot be established. What is centralism? First of all it is a centralization of correct ideas, on the basis of which unity of understanding, policy, planning, command and action are achieved. This is called centralized unification. If people still do not understand problems, if they have ideas but have not expressed them, or are angry but still have not vented their anger, how can centralized unification be established? If there is no democracy we cannot possibly summarize experience correctly. If there is no democracy, if ideas are not coming from the masses, it is impossible to establish a good line, good general and specific policies and methods. Our leading organs merely play the role of a processing plant in the establishment of a good line and good general and specific policies and methods. Everyone knows that if a factory has no raw material it cannot do any processing. If the raw material is not adequate in quantity and quality it cannot produce good finished products. Without democracy, you have no understanding of what is happening down below; the situation will be unclear; you will be unable to collect sufficient opinions from all sides; there can be no communication between top and bottom; top-level organs of leadership will depend on one-sided and incorrect material to decide issues, thus you will find it difficult to avoid being subjectivist; it will be impossible to achieve unity of understanding and unity of action, and impossible to achieve true centralism. Is not the main item for discussion at this session of our conference opposition to dispersionism and the strengthening of centralized unification? If we fail to promote democracy in full measure, then will this centralism and this unification be true or false? Will it be real or empty? Will it be correct or incorrect? Of course it must be false, empty and incorrect."
January 1, 1970
https://en.wikiquote.org/wiki/Democracy