The civil war which was started by the Cadet-Kaledin counter-revolutionary revolt against the Soviet authorities, against the workers' and peasants' government, has finally brought the class struggle to a head and has destroyed every chance of setting in a formally democratic way the very acute problems with which history has confronted the peoples of Russia, and in the first place her working class and peasants.

Collected Works, Vol. 26, pp. 379–383.