I like Society of the Spectacle, thesis 92.

The strength and the weakness of the real anarchist struggle resides in its viewing the goal of proletarian revolution as immediately present (the pretensions of anarchism in its individualist variants have always been laughable). From the historical thought of modern class struggles collectivist anarchism retains only the conclusion, and its exclusive insistence on this conclusion is accompanied by deliberate contempt for method. Thus its critique of the political struggle has remained abstract, while its choice of economic struggle is affirmed only as a function of the illusion of a definitive solution brought about by one single blow on this terrain–on the day of the general strike or the insurrection. The anarchists have an ideal to realize. Anarchism remains a merely ideological negation of the State and of classes, namely of the social conditions of separate ideology. It is the ideology of pure liberty which equalizes everything and dismisses the very idea of historical evil. This viewpoint which fuses all partial desires has given anarchism the merit of representing the rejection of existing conditions in favor of the whole of life, and not of a privileged critical specialization; but this fusion is considered in the absolute, according to individual caprice, before its actual realization, thus condemning anarchism to an incoherence too easily seen through. Anarchism has merely to repeat and to replay the same simple, total conclusion in every single struggle, because this first conclusion was from the beginning identified with the entire outcome of the movement. Thus Bakunin could write in 1873, when he left the Federation Jurassiene: “During the past nine years, more ideas have been developed within the International than would be needed to save the world, if ideas alone could save it, and I challenge anyone to invent a new one. It is no longer the time for ideas, but for facts and acts.” There is no doubt that this conception retains an element of the historical thought of the proletariat, the certainty that ideas must become practice, but it leaves the historical terrain by assuming that the adequate forms for this passage to practice have already been found and will never change.