The following quotations are from:

Louis Althusser, “Ideology and State Ideological Apparatuses,” from On Ideology, pp. 6-11, 14-31. Verso, 2008.

“What do children learn at school? They go varying distances in their studies, but at any rate they learn to read, to write and to add—i.e. a number of techniques, and a number of other things as well, including elements (which may be rudimentary or on the contrary thoroughgoing) of ‘scientific’ or ‘literary culture’, which are directly useful in the different jobs in production (one instruction for manual workers, another for technicians, a third for engineers, a final one for higher management,  etc.). Thus they learn ‘know-how’.

                  But besides these techniques and knowledges, and in learning them, children at school also learn the ‘rules’ of good behavior, i.e. the attitude that should be observed by every agent in the division of labor, according to the job he is ‘destined’ for: rules of morality, civic and professional conscience, which actually means rules of respect for the socio-technical division of labour and ultimately the rules of the order established by class domination. They also learn to ‘speak proper French’, to ‘handle’ the workers correctly, i.e. actually (for the future capitalists and their servants) to ‘order them about’ properly, i.e. (ideally) to ‘speak to them’ in the right way, etc.

                  To put this more scientifically, I shall say that the reproduction of labour power requires not only a reproduction of its skills, but also, at the same time, a reproduction of its submission to the rules of the established order, i.e. a reproduction of submission to the ruling ideology for the workers, and a reproduction of the ability to manipulate the ruling ideology correctly for the agents of exploitation and repression, so that they, too, will provide for the domination of the ruling class ‘in words.’

                  In other words, the school (but also other State institutions like the Church, or other apparatuses like the Army) teaches ‘know-how’, but in forms which ensure subjection to the ruling ideology or the mastery of its ‘practice’. All the agents of production, exploitation and repression, not to speak of the ‘professionals of ideology’ (Marx), must in one way or another be ‘steeped’ in this ideology in order to perform their tasks ‘conscientiously’—the tasks of the exploited (the proletarians), of the exploiters (the capitalists), of the exploiters’ auxiliaries (the managers), or of the high priests of the ruling ideology…

                  The reproduction of labour power thus reveals as its sine qua non not only the reproduction of its subjection to the ruling ideology or of the ‘practice’ of that ideology, with the proviso that it is not enough to say ‘not only but also’, for it is clear that it is in the forms and under the forms of ideological subjection that provision is made for the reproduction of the skills of labour power.” 6-7

“[N]o class can hold State power over a long period without at the same time exercising its hegemony over and in the State Ideological Apparatuses.” 20

“Ideological State Apparatuses may be not only the stake, but also the site of class struggle, and often of bitter forms of class struggle. The class (or class alliance) in power cannot lay down the law in the ISAs as easily as it can in the (repressive) State apparatus, not only because the former ruling classes are able to retain strong positions there for a long time, but also because the resistance of the exploited classes is able to find means and occasions to express itself there, either by the utilization of their contradictions, or by conquering combat positions in them in struggle.” 21

“[A]bove all, the State apparatus secures by repression (from the most brutal physical force, via mere administrative commands and interdictions, to open and tacit censorship) the political conditions for the action of the Ideological State Apparatuses.

                  In fact, it is the latter which largely secure the reproduction specifically of the relations of production, behind a ‘shield’ provided by the repressive State apparatus. It is here that the role of the ruling ideology is heavily concentrated, the ideology of the ruling class, which holds State power. It is the intermediation of the ruling ideology that ensures a (sometimes teeth-gritting) ‘harmony’ between the repressive State apparatus and the Ideological State Apparatuses, and between the different State Ideological Apparatuses.” 24

“In this concert, one ideological State apparatus certainly has the dominant role, although hardly anyone lends an ear to its music: it is so silent! This is the School.

                  It takes children from every class at infant-school age, and then for years, the years in which the child is most ‘vulnerable’, squeezed between the family State apparatus and the educational State apparatus, it drums into them, whether it uses new or old methods, a certain amount of ‘know-how’ wrapped in the ruling ideology (French, arithmetic, natural history, the sciences, literature) or simply the ruling ideology in its pure state (ethics, civic instruction, philosophy). Somewhere around the age of sixteen, a huge mass of children are ejected ‘into production’: these are the workers or small peasants. Another portion of scholastically adapted youth carries on: and, for better or worse, it goes somewhat further, until it falls by the wayside and fills the posts of small and middle technicians, white-collar workers, small and middle executives, petty bourgeois of all kinds. A last portion reaches the summit, either to fall into intellectual semi-employment, or to provide, as well as the ‘intellectuals of the collective labourer’, the agents of exploitation (capitalists, managers), the agents of repression (soldiers, policemen, politicians, administrators, etc.) and the professional ideologists (priests of all sorts, most of whom are convinced ‘laymen.’)

                  Each mass ejected en route is practically provided with the ideology which suits the role it has to fulfill in class society: the role of the exploited (with a ‘highly-developed’ ‘professional’, ‘ethical’, ‘civic’, ‘national’ and a-political consciousness); the role of the agent of exploitation (ability to give the workers orders and speak to them: ‘human relations’), of the agent of repression (ability to give orders and enforce obedience ‘without discussion’, or ability to manipulate the demagogy of a political leader’s rhetoric), or of the professional ideologist (ability to treat consciousnesses with the respect, i.e. with the contempt, blackmail, and demagogy they deserve, adapted to the accents of Morality, of Virtue, of ‘Transcendence’, of the Nation, of France’s World Role, etc.).” 29-30

“But it is by an apprenticeship in a variety of know-how wrapped up in the massive inculcation of the ideology of the ruling class that the relations of production in a capitalist social formation, i.e. the relations of exploited to exploiters and exploiters to exploited, are largely reproduced. The mechanisms which produce this vital result for the capitalist regime are naturally covered up and concealed by a universally reigning ideology of the School, universally reigning because it is one of the essential forms of the ruling bourgeois ideology: an ideology which represents the School as a neutral environment purged of ideology (because it is… lay), where teachers respectful of the ‘conscience’ and ‘freedom’ of the children who are entrusted to them (in complete confidence) by their ’parents’ (who are free, too, i.e. the owners of their children) open up for them the path to the freedom, morality and responsibility of adults by their own example, by knowledge, literature, and their ‘liberating’ virtues.” 30-31