Lenin on spontaneity and the need for a revolutionary vanguard

But why, the reader will ask, does the spontaneous movement, the movement along the line of least resistance, lead to the domination of bourgeois ideology? For the simple reason that bourgeois ideology is far older in origin than socialist ideology, that it is more fully developed, and that it has at its disposal immeasurably more means of dissemination.

It is often said that the working class spontaneously gravitates towards socialism. This is perfectly true in the sense that socialist theory reveals the causes of the misery of the working class more profoundly and more correctly than any other theory, and for that reason the workers are able to assimilate it so easily, provided, however, this theory does not itself yield to spontaneity, provided it subordinates spontaneity to itself. Usually this is taken for granted, but it is precisely this which Rabocheye Dyelo forgets or distorts. The working class spontaneously gravitates towards socialism; nevertheless, most widespread (and continuously and diversely revived) bourgeois ideology spontaneously imposes itself upon the working class to a still greater degree.

—V.I. Lenin, "What Is To Be Done?"