„… carry out merciless mass terror against the kulaks, priests and White Guards; unreliable elements to be locked up in a concentration camp outside the town.“

— Vladimir Lenin
„I am confident that the suppression of the Kazan Czechs and White Guards, and likewise of the bloodsucking kulaks who support them, will be a model of mercilessness.“
— Vladimir Lenin
„Root out the counterrevolutionaries without mercy, lock up suspicious characters in concentration camps… Shirkers will be shot, regardless of past service.“
— Leon Trotsky
„You can't have non-violent resistance against the Nazis in a concentration camp“
— Noam Chomsky
„The idea of a concentration camp is excellent.“
— Joseph Stalin
„Non-violent resistance activities cannot succeed against an enemy that is able freely to use violence. That's pretty obvious. You can't have non-violent resistance against the Nazis in a concentration camp, to take an extreme case...“
— Noam Chomsky