Whatseems to take place outside ideology (to be precise, in the street), in reality takes place in ideology. What really takes place in ideology seems therefore to take place outside it. That is why those who are in ideology believe themselves by definition outside ideology: one of the effects of ideology is the practical denegation of the ideological character of ideology by ideology: ideology never says, 'I am ideological.'
Louis AlthusserWhat art makes us see, and therefore gives to us in the form of 'seeing', 'perceiving' and 'feeling' (which is not the form of knowing,) is the ideology from which it is born, in which it bathes, from which it detaches itself as art, and which it alludes.
Louis AlthusserRelations of production are first reproduced by the materiality of the processes of production and circulation. But it should not be forgotten that ideological relations are immediately present in these same processes.
Louis Althusser