Concepts of Repetition and Difference

nasiraijaz December 22, 2025

0 18 9 minutes read

Repetition emerges as an act of resistance and creation

Souad Khalil | Libya

The concepts of repetition and difference occupy a central position in Gilles Deleuze’s philosophical project, particularly in his critique of traditional metaphysics founded on identity, resemblance, and representation. In this text, Deleuze challenges the classical notion of generality, which relies on substitution, equivalence, and law, and proposes instead a radical rethinking of repetition as the affirmation of singularity. Repetition, for Deleuze, is not the recurrence of the same, nor the reproduction of an identical model, but the manifestation of an irreducible difference that resists exchange and representation.

From Gilles Deleuze’s study on repetition and difference, and on how repetition differs from generality on more than one level, we learn that generality presents two major systems: a qualitative system of similarities and a quantitative system of oppositions. Cycles and equality are their respective symbols. Generality, in any case, expresses a viewpoint according to which one particular can be matched with another and substituted for it. Opposition or the substitution of properties determines our behavior in conformity with generality. In this sense, empiricists were not mistaken when they defined the general idea as a particular idea in itself, provided that it is linked to the possibility of being substituted for any other similar particular idea according to their relations.

By contrast, repetition is a necessary and constitutive behavior only with respect to that which cannot be substituted. Repetition, as behavior and as a point of view, concerns a singularity that resists substitution and change. Reflections, echoes, dualities, the soul, do not belong to the field of representation or opposition. Moreover, there is no possible substitution between true twins; there is no substitutability of the soul. If exchange is the criterion of generality, then theft and gift pertain to repetition. There is therefore an economic difference between the two.

Repetition signifies acting, but with regard to a unique or rare thing—something without likeness or equivalent. Perhaps repetition is the repetition of an external behavior that responds, in turn, to a more concealed vibration, to a deeper internal repetition within the singularity that animates it. There is no other apparent strangeness in celebration: it is the repetition of that which cannot begin again. It is not the addition of a first time to a second or third time; rather, it is the transposition of the first time by virtue of a force inherent in this relation. Repetition is reflected in a disguised manner.

Péguy says: it is not the trade union celebrations that commemorate the storming of the Bastille, nor do they represent it; rather, the storming of the Bastille is what celebrates and pre-repeats all trade union celebrations in advance. Likewise, Monet’s painting Nymphéas is what repeats all other paintings.

If we oppose generality as the generality of the particular, and repetition as the universality of the singular, we repeat a work of art as a singularity without concept. It is no coincidence that one memorizes a poem by heart: the head is the organ of exchanges, but the heart is the organ enamored of repetition (though repetition also concerns the head, since it produces anxiety and paradox). Cervin distinguishes between two languages: the language of science, dominated by the symbol of equality, in which every term can be substituted for another; and the lyrical language, in which no word can be replaced by another, and which therefore can only be repeated. Repetition can always be represented as an extreme resemblance or a perfect opposition, but even when we move gradually from one thing to another, this does not prevent a natural difference between the two.

Generality, on the other hand, belongs to the order of laws. Yet the law merely determines the similarity of the motivations subject to it, expressing them through its own particular terms. Rather than founding repetition, the law shows how repetition becomes impossible for purely legal materials—particular materials condemned by the law to change, an empty form of difference, a fixed form of alteration. The law forces its motivations to express themselves only through their specific changes. Undoubtedly, there are constants corresponding to variables in the statements to which the law refers, and there are constants and repetitions in nature corresponding to flux; however, persistent repetition does not produce more repetition.

The constants of a law are themselves merely changes within a more general law. They resemble solid rocks that were once soft and fluid according to the geological scale of a million years. At every level, with regard to stable bodies in nature, there is a subject related to the law who experiences his own impotence when repetition occurs and discovers that this impotence has been perceived in matter and reflected in stable matter, which then enacts its rule. The law unifies the changes of water in order to preserve the constancy of the river.

Élie Faure says of Watteau: the most fleeting state was regarded by our gaze as the most enduring, like space and vast forests. The eighteenth-century style of writing in Héloïse and Valmar turned this into a method: the impossibility of repetition, change as a general condition by which the law of nature governs all particular creatures. This change was grasped through fixed terms (which themselves are variable in relation to other constants according to more general laws). This is the meaning of the grove, the cave, the sacred object.

Saint-Preux declares that repetition is impossible, not only because of his own changes or those of Julie, but also because of the famous constants of nature, which take on a symbolic value without yielding to the slightest real repetition. If repetition is possible, it is of the order of miracle rather than law. It is against the law—against the law’s form of resemblance and its content of opposition. If repetition is found even in nature, it is found in the name of a force that operates against the law while acting through laws, perhaps even surpassing them. If repetition exists, it expresses at once the singular against the general, the universal against the particular, wonder against the familiar, the instantaneous against difference, eternity against permanence. Repetition is a rupture from every side: it questions the law and undermines its nominal or general character in favor of a deeper and more aesthetic reality.

Yet it is difficult to ignore every relation between repetition and law from the standpoint of scientific experimentation itself. We must ask under what conditions experimentation guarantees repetition. Natural phenomena occur in open air, and inference becomes possible within large cycles of resemblance—where everything responds to everything else and everything resembles everything else (the resemblance of the different to itself). Experimentation, however, constructs relatively closed environments in which a phenomenon is determined by a small number of selected factors (at least two, such as space and time in the general movement of a body in a vacuum).

Thus there is no reason to question the application of mathematics to physics, because physics is directly mathematical, and because prepared factors or closed environments also form systems of geometric coordinates. Under these conditions, the phenomenon necessarily appears as equal to a quantitative relation between selected factors. In experimentation, then, one general system is substituted for another—namely, an adaptive system for a resemblance-based one. By dismantling resemblances in order to discover equivalences that allow the recognition of a phenomenon under specific experimental conditions, repetition appears only when moving from one generality to another, balancing consideration and the possibility of transition.

Everything occurs as if repetition happened after the fact, between two generalities, and in the name of generalities. Yet here too we must beware of confusing a difference in degree with a difference in kind. Generality does not represent or presuppose hypothetical repetition. When we say “if the same conditions are present,” this means that within similar generalities it is always possible to prepare and select similar factors that represent an equal existence of the phenomenon. Thus what repetition poses cannot be presented, nor can what is qualitative or what is equal in right and in repetition be presented (what is equal in right is the once as a force of once, without needing to pass through a second or third time). Repetition in its essence refers to a rare force that differs in nature from generality, even when, for the sake of appearing, it benefits from an artificial transition from one general system to another.

The Stoic error lies in waiting for the repetition of the law of nature. The sage should become a virtuous person, dreaming of discovering a law that would make repetition possible from the standpoint of moral law. It is a task that must always be resumed, a fidelity to be practiced in daily life, mixed with affirmation of duty. Büchner says of Danton: it is tedious for a person to put on his shirt first and then his trousers, to throw himself onto the bed in the evening and leave it in the morning, always placing one foot in front of the other. There is no hope that this will ever change. It is very sad that millions do this, and that millions more will do so after them.

But what use is the moral law if it does not include repetition—especially if it does not make it possible—while granting us legislative authority and distancing us from the law of nature? The moral writer sometimes presents categories of good and evil under the following types: whenever we attempt repetition according to nature, as natural beings—repetition of pleasure, repetition of the past, repetition of love—we are driven into a diabolical, cursed attempt whose only outcomes are disappointment or boredom. Good, on the contrary, grants us the possibility of repetition because it depends on a law that is no longer the law of nature, but the law of duty. Its objects may not exist unless we ourselves are also legislators as moral beings.

What is this test that Kant calls the most important test, if not a mental experiment meant to determine what can be formulated as a right—that is, what can be repeated without contradiction under the name of the moral law? The human being of duty invented the experiment of repetition, determined what could be repeated from the standpoint of rights, and imagined that he had once and for all overcome what is diabolical and boring, responding to Danton’s boredom.

Yet the ambiguity of consciousness is as follows: it cannot represent itself except by presupposing the external, absolute moral law, indifferent to the law of nature; but it cannot think the application of the moral law except by forming for itself an image and model of natural law. Thus the moral law leaves us within the framework of generality without granting us true repetition. This generality is no longer that of nature but that of habit, as a second nature. It is shameful to deny the existence of immoral habits and bad habits. What is moral in essence, bearing the image of the good, is the image of habit, as Bergson says—the habit of adapting to habits (everything comes from obligation).

Within this whole, or within this generality of habit, the two major systems reappear: the system of similarities—true conformity of the elements of action to a supposed model so long as habit is not established; and the system of oppositions, with equality of the elements of action in different situations once habit is established. Habit never constitutes true repetition: sometimes the action changes and improves while the goal remains fixed; sometimes the action remains the same in different goals and contexts. Here too, if repetition is possible, it appears only between these two generalities—skill and completion—and beyond them, with the possibility of overthrowing both in favor of another, stronger repetition.

If repetition is possible, this means that it is against the moral law as well as against the natural law. There are two ways of overthrowing the moral law: either by elevating principles—by objecting to the legal system as a secondary, derivative, borrowed, and general system, and by indirectly proclaiming through the law a principle that changes the direction of a primal force and usurps an original energy; or, conversely, by inverting the law so that we descend toward results and submit to them with absolute precision. Because of an excessive attachment to the law, a particular spirit falsely seeks to overthrow it and to savor the pleasures it was supposed to defend. This is evident in proofs by contradiction, in outbursts of enthusiasm, but also in certain masochistic behaviors marked by obedience.

The first way of overturning the law is irony—irony appears as an art filled with principles, an art of ascent toward principles and of overthrowing principles. The second way is humor, which is the art of situations and descent, the art of delays and falls. Must we recognize that repetition appears in this delay just as in this ascent, as if existence were recovering and repeating itself within itself? Repetition belongs to humor and irony alike: it is a rupture in nature, an exception that always appears as a singularity against the particularities subject to the law, and as something universal against the generalities invented by the law.

This text reveals repetition as one of Deleuze’s most radical philosophical gestures. Far from being a mechanical return or a redundant cycle, repetition becomes the site where difference asserts itself most powerfully. Against the systems of law, habit, and representation that seek to stabilize meaning through equivalence and substitution, repetition emerges as an act of resistance and creation.