We shall have to change our line of conduct very often, and this may appear strange and incomprehensible to the casual observer. “How is that?” he will say. “Yesterday you were making promises to the petty bourgeoisie, while today Dzerzhinsky announces that the Left Socialist-Revolutionaries and the Mensheviks will be stood against the wall. What a contradiction!” Yes, it is a contradiction. But the conduct of the petty-bourgeois democrats themselves is contradictory: they do not know where to sit, and try to sit between two stools, jump from one to the other and fall now to the right and how to the left. We have changed our tactics towards them, and whenever they turn towards us we say “Welcome” to them. We have not the slightest intention of expropriating the middle peasants; we certainly do not want to use force against the petty-bourgeois democrats. We say to them, “You are not a serious enemy. Our enemy is the bourgeoisie. But if you join forces with them, we shall be obliged to apply the measures of the proletarian dictatorship to you, too.”
V.I. Lenin, Report of the Central Committee, March 18, 1919, Eighth Congress of the Russian Communist Party (Bolsheviks)










