V. I. Lenin
Jane Degras, ed., The Communist International: 1919-1943 Documents
London: Frank Cass & Co., Ltd, 1971, Vol. 1, p. 119

"The longer bourgeois democracy has prevailed in a country, the
more complete and well established it is, the more successful have
the bourgeoisie of that country been in getting into those leading
positions people who are reared in bourgeois democracy, saturated in
its attitudes and prejudices, and very frequently bribed by it, whether
directly or indirectly. These representatives of the labour aristocracy,
or of workers who have become bourgeois in outlook, must be pushed out
of all their positions a hundred times more boldly than ever before,
and replaced even by inexperienced workers, so long as they are closely
tied to the exploited masses."

[MC5 adds: This was from 1916.]