The ‘healthy’ sign, for Barthes, is one which draws attention to its own arbitrariness—which does not try to palm itself off as ‘natural’ but which, in the very moment of conveying a meaning, communicates something of its own relative, artificial status as well. …Signs which pass themselves off as natural, which offer themselves as the only conceivable way of viewing the world, are by that token authoritarian and ideological. It is one of the functions of ideology to ‘naturalize’ social reality, to make it seem as innocent and unchangeable as Nature itself. Ideology seeks to convert culture into Nature, and the ‘natural’ sign is one of its weapons. Saluting a flag, or agreeing that Western democracy represents the true meaning of the word ‘freedom’, become the most obvious, spontaneous responses in the world. Ideology, in this sense, is a kind of contemporary mythology, a realm which has purged itself of ambiguity and alternative possibility.

Lacan, as we have seen in our discussion of Freud, regards the unconscious as structured like a language. This is not only because it works by metaphor and metonymy: it is also because, like language itself for the post-structuralists, it is composed less of signs — stable meanings — than of signifiers. If you dream of a horse, it is not immediately obvious what this signifies: it may have many contradictory meanings, may be just one of a whole chain of signifiers with equally multiple meanings. The image of the horse, that is to say, is not a sign in Saussure’s sense - it does not have one determined signified tied neatly to its tail - but is a signifier which may be attached to many different signifieds, and which may itself bear the traces of the other signifiers which surround it. (I was not aware, when I wrote the above sentence, of the word-play involved in ‘horse’ and ‘tail’: one signifier interacted with another against my conscious intention.) The unconscious is just a continual movement and activity of signifiers, whose signifieds are often inaccessible to us because they are repressed. This is why Lacan speaks of the unconscious as a ‘sliding of the signified beneath the signifier’, as a constant fading and evaporation of meaning, a bizarre ‘modernist’ text which is almost unreadable and which will certainly never yield up its final secrets to interpretation.

A socialist is just someone who is unable to get over his or her astonishment that most people who have lived and died have spent lives of wretched, fruitless, unremitting toil.

Successful revolutions are those which end up by erasing all traces of themselves.

Because subjects like literature and art history have no obvious material pay-off, they tend to attract those who look askance at capitalist notions of utility. The idea of doing something purely for the delight of it has always rattled the grey-bearded guardians of the state. Sheer pointlessness has always been a deeply subversive affair.

Historical determinism is a recipe for political quietism.