For the information of these “friends” who consider themselves called to defend against us the role of the Bolsheviks in the October Revolution, we give warning that our book teaches not how to love a victorious revolution after the event, in the person of the bureaucracy it has brought forward, but only how a revolution is prepared, how it develops, and how it conquers. A party is not for us a machine whose sinlessness is to be defended by state measures of repression, but a complicated organism that like all living things develops in contradictions.