
"Lessons of the Commune" http://www.marx.org/archive/lenin/works/1908/mar/23.htm, Collected Works, Vol. 13.
Collected Works
“Lessons of the Commune”, in Zagranichnaya Gazeta, No. 2 (23 March 1908) http://www.marx.org/archive/lenin/works/1908/mar/23.htm, as translated by Bernard Isaacs, Collected Works, Vol. 13, p. 478.
1900s
Variant: The proletariat should not ignore peaceful methods of struggle — they serve its ordinary, day-to-day interests, they are necessary in periods of preparation for revolution — but it must never forget that in certain conditions the class struggle assumes the form of armed conflict and civil war; there are times when the interests of the proletariat call for ruthless extermination of its enemies in open armed clashes. This was first demonstrated by the French proletariat in the Commune and brilliantly confirmed by the Russian proletariat in the December uprising.
"Lessons of the Commune" http://www.marx.org/archive/lenin/works/1908/mar/23.htm, Collected Works, Vol. 13.
Collected Works
Books, Islam and the West: A Conversation with Bernard Lewis (2006)
Anarchism or Socialism (1906)
The Foundations of Leninism
from "The Social-Democratic View of the National Question", 1904 (aged 26) http://www.marxists.org/reference/archive/stalin/works/1904/09/01.htm
Stalin's speeches, writings and authorised interviews
As quoted in The Ideology of Fascism: The Rationale of Totalitarianism, A. James Gregor, New York and London, The Free Press (1969) p. 106
Undated
The Foundations of Leninism
Source: Reform or Revolution (1899), Ch. 8
(1847)