Revolutions are the locomotives of history

A few choice sentences from Lenin during the rapid ‘education’ of the 1905-7 revolution:

Revolutions are the locomotives of history, said Marx. Revolutions are festivals of the oppressed and the exploited. At no other time are the mass of the people in a position to come forward so actively as creators of a new social order, as at a time of revolution. At such times the people are capable of performing miracles (Collected Works, vol. 9, p. 113).