Ideology... is indispensable in any society if men are to be formed, transformed and equipped to respond to the demands of their conditions of existence.
Louis AlthusserThe economic class struggle is a struggle against inessanlty intensified exploitation: not only against the brutal material form of exploitation, capitalism's tendency to reduce wages, and against the class 'techniques' for increasing productivity... but also around the question of the technical-social division of labor that prevails om enterprises, and against bourgeois ideology and repression.
Louis AlthusserOccasionally, the whole class struggle may be summed up in the struggle for one word against another word. Certain words struggle amongst themselves as enemies. Other words are the site of an ambiguity: the stake in a decisive but undecided battle
Louis AlthusserWhatseems 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 AlthusserThe rejection of all abstract formalism. Materialism reminds every science of its real source: the world men transform. No science can, whether in its history or its object, grasp its own origins within itself or constitute itself as a closed world, exhaustively defined by internal rules. Materialism refers every science and every activity to the reality they depend on, even if this dependence is masked by a great many abstract mediations: mathematics as well as logic, aesthetics as well as ethics and politics.
Louis Althusser