The ideas of the ruling class are in every epoch the ruling ideas: i.e. the class which is the ruling material force of society, is at the same time its ruling intellectual force. The class which has the means of material production at its disposal, consequently also controls the means of mental production, so that the ideas of those who lack the means of mental production are on the whole subject to it. The ruling ideas are nothing more than the ideal expression of the dominant material relations, the dominant material relations grasped as ideas; hence of the relations which make the one class the ruling one, therefore, the ideas of its dominance. The individuals composing the ruling class possess among other things consciousness, and therefore think. Insofar, therefore, as they rule as a class and determine the extent and compass of an historical epoch, it is self-evident that they do this in its whole range, hence among other things rule also as thinkers, as producers of ideas, and regulate the production and distribution of the ideas of their age: thus their ideas are the ruling ideas of the epoch. For instance, in an age and in a country where royal power, aristocracy, and bourgeoisie are contending for domination and where, therefore, domination is shared, the doctrine of the separation of powers proves to be the dominant idea and is expressed as an ‘eternal law’.
The division of labour, which we already saw above as one of the chief forces of history up till now, manifests itself also in the ruling class as the division of mental and material labour, so that inside this class one part appears as the thinkers of the class (its active, conceptive ideologists, who make the formation of the illusion of the class about itself their chief source of livelihood), while the others’ attitude to these ideas and illusions is more passive and receptive, because they are in reality the active members of this class and have less time to make up illusions and ideas about themselves. Within this class this cleavage can even develop into a certain opposition and hostility between the two parts, but whenever a practical collision occurs in which the class itself is endangered they automatically vanish, in which case there also vanishes the appearance of the ruling ideas being not the ideas of the ruling class and having a power distinct from the power of this class. …
If now in considering the course of history we detach the ideas of the ruling class from the ruling class itself and attribute to them an independent existence, if we confine ourselves to saying that these or those ideas were dominant at a given time, without bothering ourselves about the conditions of production and the producers of these ideas, if we thus ignore the individuals and world conditions which are the source of the ideas, then we can say, for instance, that during the time the aristocracy was dominant, the concepts honour, loyalty, etc., were dominant, during the dominance of the bourgeoisie the concepts freedom, equality, etc. The ruling class itself on the whole imagines this to be so. This conception of history, which is common to all historians, particularly since the eighteenth century, will necessarily come up against the phenomenon that ever more abstract ideas hold sway, i.e. ideas which increasingly take on the form of universality. For each new class which puts itself in the place of one ruling before it is compelled, merely in order to carry through its aim, to present its interest as the common interest of all the members of society, that is, expressed in ideal form: it has to give its ideas the form of universality, and present them as the only rational, universally valid ones. The class making a revolution comes forward from the very start, if only because it is opposed to a class, not as a class but as the representative of the whole of society, as the whole mass of society confronting the one ruling class. It can do this because initially its interest really is as yet mostly connected with the common interest of all other non-ruling classes, because under the pressure of hitherto existing conditions its interest has not yet been able to develop as the particular interest of a particular class. Its victory, therefore, benefits also many individuals of the other classes which are not winning a dominant position, but only insofar as it now enables these individuals to raise themselves into the ruling class. When the French bourgeoisie overthrew the rule of the aristocracy, it thereby made it possible for many proletarians to raise themselves above the proletariat, but only insofar as they become bourgeois. Every new class, therefore, achieves domination only on a broader basis than that of the class ruling previously…
Once the ruling ideas have been separated from the ruling individuals and, above all, from the relations which result from a given stage of the mode of production, and in this way the conclusion has been reached that history is always under the sway of ideas, it is very easy to abstract from these various ideas ‘the Idea’, the thought, etc. as the dominant force in history, and thus to consider all these separate ideas and concepts as ‘forms of self-determination’ of the Concept developing in history. It follows then naturally, too, that all the relations of men can be derived from the concept of man, man as conceived, the essence of man, Man. This has been done by the speculative philosophy. Hegel himself confesses at the end of the Geschichtsphilosophie that he ‘has considered the progress of the concept only’ and has represented in history the ‘true theodicy’ (p. 446). Now one can go back again to the producers of the ‘concept’, to the theorists, ideologists and philosophers, and one comes then to the conclusion that the philosophers, the thinkers as such, have at all times been dominant in history: a conclusion, as we see, already expressed by Hegel.
The whole trick of proving the hegemony of the spirit in history (hierarchy Stirner calls it) is thus confined to the following three attempts.
No. 1. One must separate the ideas of those ruling for empirical reasons, under empirical conditions and as corporeal individuals, from these rulers, and thus recognise the rule of ideas or illusions in history.
No. 2. One must bring an order into this rule of ideas, prove a mystical connection among the successive ruling ideas, which is managed by regarding them as ‘forms of self-determination of the concept’ (this is possible because by virtue of their empirical basis these ideas are really connected with one another and because, conceived as mere ideas, they become self-distinctions, distinctions made by thought).
No. 3. To remove the mystical appearance of this ‘self-determining concept’ it is changed into a person – ‘self-consciousness’ – or, to appear thoroughly materialistic, into a series of persons who represent the ‘concept’ in history, into the ‘thinkers’, the ‘philosophers’, the ideologists, who again are understood as the manufacturers of history, as the ‘council of guardians’, as the rulers. Thus the whole body of materialistic elements has been eliminated from history and now full rein can be given to the speculative steed.
This historical method which reigned in Germany, and especially the reason why, must be explained from its connection with the illusion of ideologists in general, e.g., the illusions of the jurists, politicians (including the practical statesmen), from the dogmatic dreamings and distortions of these fellows; this is explained perfectly easily from their practical position in life, their job, and the division of labour.
Whilst in ordinary life every shopkeeper is very well able to distinguish between what somebody professes to be and what he really is, our historiography has not yet won this trivial insight. It takes every epoch at its word and believes that everything it says and imagines about itself is true.
Karl Marx, Frederick Engels, The German Ideology, Progress Publishers, Moscow, 1976, 67-71