From Enlightenment Universality to Post-Enlightenment Conflict: A Genealogy of Power, Identity, and Critique

Introduction

The deepest philosophical explanation of much of modern political and cultural life is not simply that “postmodernism rejected truth.” A more precise account is that, from the nineteenth century onward, a series of philosophical revolutions historicized reason, politicized institutions, socialized the subject, and made power central to knowledge, morality, law, and identity. The result was a transition from the Enlightenment image of society as a rational order of free individuals under neutral institutions toward a post-Enlightenment image of society as a field of historically produced identities, hegemonic meanings, exclusions, and conflicts over recognition, memory, and power.

This development should not be reduced to one author or one ideology. It is a genealogy: Johann Gottfried Herder, Georg Wilhelm Friedrich Hegel, Karl Marx, Friedrich Nietzsche, Martin Heidegger, Antonio Gramsci, Carl Schmitt, Max Horkheimer, Theodor W. Adorno, Louis Pierre Althusser, Simone de Beauvoir, Frantz Fanon, Michel Foucault, Jacques Derrida, Jean-François Lyotard, Gilles Deleuze, Félix Guattari, Jean Baudrillard, Judith Butler, Ernesto Laclau, and Chantal Mouffe are among the most important figures in this transformation.

I. The Enlightenment target: reason, rights, neutrality

The Enlightenment ideal, especially in Immanuel Kant, treats human beings as capable of rational self-legislation. Political legitimacy is ideally grounded in public reason, universal right, consent, legality, and institutions that restrain arbitrary power. In this model, law is not merely a weapon of a group; science is not merely a discourse of domination; the individual is not merely a product of history; rights are not merely masks for collective interests.

The post-Enlightenment turn begins when this picture is challenged from within. The question becomes: what if “reason,” “law,” “rights,” “truth,” and “the individual” are themselves historical achievements shaped by power? This question does not necessarily refute Enlightenment liberalism, but it transforms the burden of proof. Institutions can no longer simply declare themselves neutral; they must be examined genealogically, sociologically, and politically.

The Stanford Encyclopedia of Philosophy (SEP) describes philosophical postmodernism as a set of “critical, strategic and rhetorical practices” using concepts such as difference, repetition, trace, simulacrum, and hyperreality to destabilize presence, identity, historical progress, epistemic certainty, and univocal meaning. It also notes that the word entered the philosophical lexicon prominently through Jean-François Lyotard’s "La Condition postmoderne. Rapport sur le savoir" in 1979

II. Historicism: from universal human nature to historical formation

The first decisive break comes through historicism. Johann Gottfried Herder’s key contribution is the idea that human nature, language, culture, and moral life are historically and culturally formed rather than simply expressions of an abstract universal human essence. Johann Gottfried Herder’s historicism prepared the later idea that identities and values are socially and historically constructed. The Stanford Encyclopedia of Philosophy (SEP) explicitly links Johann Gottfried Herder’s historicized human nature to later ideas of social construction in late twentieth-century thought.

Georg Wilhelm Friedrich Hegel radicalized this by making reason itself historical. Georg Wilhelm Friedrich Hegel did not reject reason; rather, Georg Wilhelm Friedrich Hegel made reason unfold through conflict, negation, recognition, and historical development. His most important contribution to postmodernism is indirect: Georg Wilhelm Friedrich Hegel made it plausible to think that consciousness, freedom, ethical life, and institutions are historically mediated rather than timelessly given. His philosophy of history presents world history as an intelligible process oriented toward human freedom, while also binding subjectivity to historical forms of life

This matters because later postmodern and poststructuralist thinkers retain the historical mediation but often reject the Hegelian confidence that history culminates in rational reconciliation. In other words, Georg Wilhelm Friedrich Hegel historicizes reason; later thinkers keep the historicism and discard the teleology.

III. Suspicion: ideology, morality, and the unmasking of universals

Karl Marx gives the modern critique of ideology its central political form. Karl Marx’s most important contribution to postmodernism is not postmodernism itself, but the suspicion that apparently universal ideas may express historically specific relations of production, class power, and social domination. In the Marxian tradition, law, morality, religion, and political economy can function as ideology: they present contingent social relations as natural, necessary, or just. The SEP entry on law and ideology notes that Karl Marx and Friedrich Engels understood ideas as shaped by material relations and that ideology protects exploitative and alienating social conditions from criticism.

Friedrich Nietzsche deepens suspicion by turning morality itself into an object of genealogy. Friedrich Nietzsche’s most important contribution to postmodernism is the genealogical method: instead of asking whether a moral value is eternally true, Friedrich Nietzsche asks what type of life, ressentiment, weakness, strength, discipline, or will to power produced that value. The Stanford Encyclopedia of Philosophy (SEP) summarizes Friedrich Nietzsche’s "Zur Genealogie der Moral: Eine Streitschrift" (1887) as an attempt to reveal the origins, foundations, and functions of moral values, including Friedrich Nietzsche’s perspectivism: the denial of a God’s-eye standpoint.

Together, Karl Marx and Friedrich Nietzsche change critique from refutation into exposure. A proposition may be logically coherent and still be socially suspect. A right may be formally universal and still function as a mask for domination. A moral vocabulary may express injury, power, fear, or discipline rather than neutral truth.

Karl Marx and Friedrich Nietzsche both transform inherited philosophical frameworks by reversing their evaluative orientation: Marx converts Hegelian idealist dialectic into materialist dialectic, while Nietzsche overturns Platonism by challenging the hierarchy that privileges the supersensible “true world” over sensuous earthly existence.

IV. The crisis of the autonomous subject

Martin Heidegger’s most important contribution to postmodernism is the destruction of the self-transparent Cartesian subject and the critique of Western metaphysics as a history of presence, objectification, and technological enframing. Martin Heidegger is not a postmodernist in a simple sense, but later postmodernists inherit from Martin Heidegger the suspicion that modern reason reduces being to calculability, representation, and control. Heidegger’s contribution to postmodernism is not a doctrine of postmodernity but a philosophical displacement: he undermines the Cartesian subject, exposes Western metaphysics as a history of representational thinking, and opens the path for later critiques of reason, technology, presence, mastery, and the modern will to control. His critique of Cartesian subjectivity, representation, modern technology, and calculative reason becomes foundational for later thinkers such as Derrida, Foucault, Lyotard, and Vattimo. The SEP identifies Martin Heidegger as a seminal influence on contemporary European philosophy.

Louis Pierre Althusser further de-centers the subject by rejecting the humanist idea that individuals exist first as autonomous, self-transparent agents who are later misled by ideology. For Althusser, ideology is not merely a false representation imposed upon already-formed individuals; rather, ideology constitutes individuals as subjects through what he calls interpellation. In this sense, the subject is not the origin of meaning, politics, or social action, but an effect of ideological structures and institutional practices.  Louis Pierre Althusser’s most important contribution to postmodernism is the theory that ideology does not merely deceive pre-existing individuals; ideology produces subjects. Althusser links Marxism to later poststructuralist/postmodern theories by making the subject an effect of ideology rather than its origin. The SEP notes that Louis Pierre Althusser’s theory of ideology became foundational for much post-Marxist philosophy and that his social philosophy displaces both the individual and the state as primary explanatory essences.

Simone de Beauvoir contributes the existential-feminist version of this problem. Simone de Beauvoir’s most important contribution to postmodernism is the analysis of woman as historically and socially produced as “Other,” not naturally destined to subordination. Simone de Beauvoir’s "Le Deuxième Sexe" (1949) becomes foundational for later feminist, gender, and identity theories because it shows that embodiment is interpreted through social meanings rather than simply given as political destiny.

V. Hegemony: institutions as power rather than neutrality

Antonio Gramsci’s most important contribution to postmodernism is the concept of cultural hegemony. Antonio Gramsci shifts attention from overt coercion to the production of consent through education, religion, media, common sense, intellectuals, and civil society. The SEP describes Antonio Gramsci’s hegemony as “intellectual and moral leadership” embedding a ruling class across society and emphasizes Antonio Gramsci’s break with economic determinism in favor of historically contingent political analysis.

This is decisive for the modern political imagination. If power operates through common sense, then schools, museums, universities, media, language, curricula, professional norms, and bureaucratic categories become political battlegrounds. The neutral institution becomes suspect because neutrality may itself be a hegemonic achievement.

Max Horkheimer and Theodor W. Adorno then radicalize this suspicion into a critique of Enlightenment rationality itself. Max Horkheimer’s most important contribution is the distinction between traditional theory and critical theory: theory is not detached contemplation but part of social practice. In “Traditionelle und kritische Theorie,” (1937) Max Horkheimer argues that traditional theory wrongly separates theory from social reality and that thinking, its direction, and the structure of objectivity are historically connected with human activity.

Theodor W. Adorno’s most important contribution to postmodernism is the critique of instrumental reason and identity-thinking: the tendency of concepts, systems, and administration to dominate what does not fit them. Together, Max Horkheimer and Theodor W. Adorno argue in "Dialektik der Aufklärung" (1944) that Enlightenment reason can regress into domination when reason becomes merely calculative, administrative, and instrumental. The SEP describes Critical Theory as an interdisciplinary project combining philosophy and social science with an emancipatory aim.

VI. The primacy of political conflict

Carl Schmitt is not a postmodernist, and Carl Schmitt’s authoritarian politics make Carl Schmitt a dangerous and often anti-liberal source. Yet Carl Schmitt’s most important contribution to the post-Enlightenment political turn is the friend-enemy conception of “the political.” Carl Schmitt argues that liberalism depoliticizes society by imagining that law, morality, economics, or rational discussion can dissolve existential conflict. The SEP notes that, for Carl Schmitt, a state’s legitimacy depends on embodying a clear friend-enemy distinction and that Carl Schmitt criticizes liberalism for denying genuine political decision.

This anti-liberal conception resurfaces, in transformed democratic form, in Ernesto Laclau and Chantal Mouffe. Ernesto Laclau’s most important contribution to postmodernism is the post-Marxist theory that political identities are discursively articulated rather than naturally given by class essence. Chantal Mouffe’s most important contribution is agonistic pluralism: democracy is not the final consensus of rational individuals but an institutionalized conflict among adversaries. Chantal Mouffe explicitly criticizes liberal democratic theory for relying too heavily on an individualistic, universalistic, rationalistic framework that erases the political, and Chantal Mouffe proposes agonistic pluralism as an alternative.

Here the turn is complete: politics is no longer primarily the application of neutral principles to public life; politics is a struggle over the terms in which public life is named, organized, and legitimated.

VII. Colonialism, injury, and collective identity

Frantz Fanon’s most important contribution to postmodernism is the analysis of racialized subjectivity under colonial power. Frantz Fanon shows that the colonized subject is not merely denied rights; the colonized subject is produced through violence, language, recognition, misrecognition, and the colonial gaze. The SEP emphasizes Frantz Fanon’s suspicion of recognition when recognition relies on a supposedly universal human standard that is already racialized.

This is crucial for the modern politics of historical grievance. The point is not merely that groups remember past injuries. The deeper claim is that historical injury produces categories of subjectivity, patterns of recognition, inherited institutions, and unequal capacities to speak. From this perspective, historical grievance is not simply resentment; it is a claim that the present still contains the past in its institutions, language, wealth, borders, and identities.

VIII. Poststructuralism: discourse, power, deconstruction

Michel Foucault is probably the single most important philosopher for the political form of postmodernism. Michel Foucault’s most important contribution is the concept of power/knowledge: knowledge is not merely repressed by power but produced within regimes of power, discipline, normalization, classification, and subjectivation. In “Le sujet et le pouvoir,” (1982) Michel Foucault defines power as action upon possible actions, argues that a society without power relations is an abstraction, and treats the analysis of power relations as a permanent political task.

This provides the central grammar of contemporary critique: institutions do not merely prohibit; they produce subjects, norms, classifications, pathologies, identities, and truths. The school, prison, clinic, asylum, census, welfare office, immigration system, and university become laboratories of subject formation.

Jacques Derrida’s most important contribution is deconstruction. Jacques Derrida shows how philosophical and political texts depend on unstable oppositions - speech/writing, presence/absence, reason/madness, male/female, center/margin - that they cannot fully master. Deconstruction is a philosophical practice of reading that reveals how apparently stable meanings depend on unstable oppositions, exclusions, traces, and deferred meanings that prevent any concept, text, or institution from achieving final self-contained authority. Derrida’s deepest claim is that philosophy has often desired final foundations: pure reason, pure presence, pure origin, pure meaning. But language and thought do not work that way. Meaning depends on difference, absence, context, repetition, and interpretation.So deconstruction is the practice of showing that every system contains internal tensions that exceed its own stated logic.The SEP identifies Jacques Derrida as the founder of deconstruction and describes deconstruction as a way of criticizing philosophical texts and political institutions.

Jean-François Lyotard gives postmodernism one of its canonical formulations in La condition postmoderne: rapport sur le savoir (1979), where he defines the postmodern as an “incredulity toward metanarratives.” Jean-François Lyotard’s most important contribution is the critique of metanarratives: Christianity, Enlightenment progress, Hegelian Spirit, Marxist emancipation, liberal development, and even universal science, lose their unquestioned status as foundations of truth and social order. The SEP summarizes Jean-François Lyotard’s position as the claim that the postmodern is “incredulity toward metanarratives,” leaving “little” or regional narratives in conflict with one another.

IX. Difference, performativity, simulation

Gilles Deleuze and Félix Guattari contribute a metaphysics and politics of multiplicity. Gilles Deleuze’s most important contribution is the philosophy of difference, becoming, and non-identical multiplicities. Félix Guattari’s most important contribution, in collaboration with Gilles Deleuze, is the analysis of desire, assemblages, deterritorialization, and rhizomatic social forms. Deterritorialization is the uprooting of identities, meanings, or institutions from stable structures; rhizomatic social forms are decentralized, network-like arrangements that spread through multiple connections rather than through hierarchy or central authority. The influence of Deleuze and Guattari lies in replacing hierarchical, centered, representational models of society with decentralized, mobile, productive networks of desire and power. The IEP describes Gilles Deleuze as a key figure in postmodern French philosophy whose work rests on multiplicity, constructivism, difference, and desire.

Jean Baudrillard’s most important contribution is the theory of simulacra and hyperreality. Simulacra are representations that no longer depend on a stable original; hyperreality is the social condition in which such representations become more powerful, persuasive, and operative than reality itself. Jean Baudrillard argues that late modern societies are governed not merely by production or ideology but by signs, images, codes, media, and simulations. The SEP describes Jean Baudrillard’s hyperreality as a condition in which signs and images no longer refer to an external reality but to networks of representation.

Judith Butler’s most important contribution is performativity. Judith Butler argues that gender identity is not simply an inner essence expressed outwardly but is constituted through repeated, regulated social acts. The SEP explains that Judith Butler critiques gender realism and identity politics by arguing that unitary gender categories ignore the multiple cultural, social, and political intersections through which “women” are constructed.Judith Butler’s 1988 article “Performative Acts and Gender Constitution” is a major academic source for this view. Butler’s 1988 article argues that gender is not an inner natural identity but a socially compelled, repeatedly enacted performance that creates the illusion of a stable masculine or feminine essence - and because it is performatively produced, it can also be contested and transformed.

X. Darwinsm and postmodernism.

There is a parallel to be drawn between Darwinsm and postmodernism. Just as Darwinism decentered humanity biologically by showing we evolved through adaptation rather than divine design, postmodernism decentered philosophy by showing that reason, morality, and truth are human constructs shaped by history and power, not eternal absolutes. Both are attacks on privileged self-images. Darwinism removes final purpose from nature. Postmodernism removes final foundations from culture. 

Darwinism decenters humanity from within science. Postmodernism decenters reason by turning critique against science, philosophy, morality, and politics themselves. Darwinism is the biological dethronement of man; postmodernism is the philosophical dethronement of universal reason. Both replace essence, design, and teleology with contingency, history, struggle, and formation.

This makes postmodernism potentially more destabilizing. Darwinism changed humanity’s place in nature, but it did not necessarily destroy the authority of scientific reason. Postmodernism, especially in radical forms, can question the authority of the very rational procedures by which modern societies justify truth, law, morality, and institutions.

XI. The modern consequence

The result of this genealogy is a society in which nearly every major institution is interpreted through suspicion: law as ideology, science as situated knowledge, education as reproduction, language as power, identity as constructed, morality as genealogy, rights as historically selective, and politics as struggle over hegemony.

This explains many features of modern society: culture wars, identity politics, disputes over historical memory, battles over university curricula, conflicts over speech and recognition, skepticism toward expertise, suspicion of legal neutrality, and the politicization of language. James Davison Hunter’s concept of “culture wars” describes such conflicts as struggles over moral authority in public life, while Charles Taylor’s “politics of recognition” helps explain why identity and recognition become central political demands. The deepest point is not that modern people stopped believing in truth. The deeper point is that modern people increasingly ask: whose truth, produced by which institutions, serving which power, silencing which experience, and stabilizing which historical order?

That question is the post-Enlightenment turn in its most concentrated form.

Conclusion

The post-Enlightenment turn is therefore best understood as the movement from universal reason to situated rationalities, from individual rights to group-based recognition, from neutral institutions to hegemonic institutions, from truth to power/knowledge, from law to ideology, from history as progress to history as injury and struggle, and from consensus to agonism.

As a method, postmodernism can be intellectually valuable: it exposes hidden assumptions, ideological exclusions, abuses of institutional neutrality, historical blind spots, and the ways language and power shape social reality. But when radicalized into a general suspicion of truth, reason, law, science, merit, rights, and shared civic institutions, it can erode the conditions that make a stable liberal-democratic society possible.The danger is therefore not simply “postmodernism” in the abstract. The danger is postmodernism without limits.

The power of postmodernism is therefor diagnostic: it reveals domination where liberal universalism sometimes saw neutrality. Its danger is corrosive: if all norms are reduced to power, critique loses the universal standards by which domination can be condemned. The unresolved question of modern society is therefore whether one can retain the emancipatory achievements of the Enlightenment - rights, legality, science, public reason - while absorbing the post-Enlightenment insight that no institution, identity, or discourse is innocent of history and power.

Bibliography

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