Frederick Engels: 200 years since his birth

Marxist Theory · 2026-05-13

Core Argument

The article argues that Friedrich Engels was not merely Marx's collaborator or secondary figure, but a co-founder of scientific socialism whose theoretical contributions — particularly in philosophy, dialectics, and the materialist conception of history — were indispensable to Marxism as a coherent system. Rob Sewell contends that Engels has been systematically underestimated, both by bourgeois historians who treat him as a subsidiary figure and by later opportunist currents within the workers' movement who diluted his revolutionary conclusions. The central claim is that Engels' legacy is not simply biographical but political: his defence of the dictatorship of the proletariat, his polemics against reformism, and his insistence on the dialectical character of nature and history remain directly relevant to the contemporary struggle against capitalism. The article positions the defence of Engels' theoretical legacy as inseparable from the fight against the opportunism that later infected the Second International and which continues to manifest itself in reformist and Stalinist politics today.

Theoretical Grounding

The analysis draws on several key Marxist concepts and traditions:

Dialectical materialism: The article emphasises Engels' contribution to grounding dialectics in the natural sciences, particularly through Anti-Dühring and Dialectics of Nature. Sewell presents Engels' formulation that "Nature is the proof of dialectics" as a fundamental contribution, distinguishing Marxist materialism from both mechanical materialism and Hegelian idealism.

The materialist conception of history: The article reproduces Engels' famous letter to Joseph Bloch (1890) to clarify that the economic is "the ultimately determining element" but not the only determining one — a crucial corrective against vulgar economic determinism that Engels himself provided.

The state and revolution: Engels' 1891 introduction to Marx's The Civil War in France is presented as a decisive intervention against the emerging opportunism in German Social Democracy, reaffirming that the democratic republic remains "a machine for the oppression of one class by another" and that the Paris Commune was the dictatorship of the proletariat in action.

The critique of reformism and parliamentary cretinism: The article situates Engels' late polemics as a direct precursor to the struggle against Bernsteinism and the betrayal of August 1914, connecting Engels' warnings to the later trajectory of the Second International.

The article sits firmly within the orthodox Marxist tradition as defended by Lenin and Trotsky, drawing heavily on Trotsky's Diary in Exile assessment of Engels and Lenin's characterisation of the Marx-Engels friendship. It explicitly rejects bourgeois biographical treatments — singling out Tristram Hunt's The Frock-Coated Communist — as methodologically worthless.

Conjunctural Relevance

The article was published in November 2020, marking the bicentenary of Engels' birth. While it is primarily commemorative, its political relevance is established through several contemporary connections:

The crisis of reformism: The article's extended treatment of Engels' fight against opportunism in the German Social Democracy speaks directly to the continued failure of social democratic and labour parties to offer any revolutionary alternative to capitalism. The description of the United States as governed by "two great gangs of political speculators" who "alternately take possession of the state power and exploit it by the most corrupt means" retains its force in the era of Trump and Biden, Starmer and Sunak.

The theoretical vacuum on the left: By emphasising Engels' encyclopedic range — philosophy, economics, military science, philology, natural science — the article implicitly critiques the narrow specialisation and theoretical impoverishment of much contemporary left-wing thought. Engels is held up as a model of the revolutionary intellectual who combined theoretical rigour with practical engagement.

The continued relevance of dialectics: The article's insistence on dialectical materialism as a method for understanding both nature and society positions Marxism against both postmodern relativism and crude positivism — tendencies that remain influential in academic and activist circles.

The state and revolution: Engels' insistence that the working class must smash the bourgeois state machine, not simply capture it, is presented as a living political question, not a historical curiosity. This connects directly to the RCI's strategic orientation toward revolutionary rather than reformist politics.

Where the Argument Continues

The article opens several lines of inquiry that are developed elsewhere in the IDOM corpus and broader Marxist literature:

Engels' philosophical works: The article references Anti-Dühring, Dialectics of Nature, and Ludwig Feuerbach and the End of Classical German Philosophy but does not elaborate their arguments in detail. These are treated more fully in IDOM articles on dialectical materialism and in the RCI's educational materials.

The Engels-Bloch correspondence: The letter on the materialist conception of history is quoted but its implications for debates about base and superstructure, economic determinism, and historical agency are not fully explored. These questions are taken up in IDOM articles on historical materialism and in Trotsky's writings on the dialectic.

The Second International and its degeneration: The article gestures toward the betrayal of August 1914 but does not trace the full trajectory from Engels' death to the collapse of the Second International. This is developed in IDOM articles on the history of the workers' movement and in Lenin's The State and Revolution and Imperialism, the Highest Stage of Capitalism.

Engels and the national question: The article notes Engels' knowledge of multiple languages and his correspondence with socialist movements across Europe, but does not explore his writings on Poland, Ireland, or the national question more broadly. These are treated in IDOM articles on the national question and in the Marxist tradition from Marx and Engels through Lenin and Trotsky.

The Engels-Hunt polemic: The dismissal of Tristram Hunt's biography is brief. A more extended critique of bourgeois biographical approaches to Marx and Engels can be found in IDOM articles on Marxist historiography and in the RCI's book reviews.

Connections

Primary texts: Engels' Anti-Dühring, Dialectics of Nature, The Origin of the Family, Private Property and the State, Ludwig Feuerbach and the End of Classical German Philosophy, and his 1891 introduction to Marx's The Civil War in France. The Marx-Engels correspondence, particularly the letter to Joseph Bloch (1890).

Lenin: The State and Revolution (for the treatment of Engels on the state and the Paris Commune); What is to be Done? (for the relationship between theory and the workers' movement); Karl Marx (for a concise summary of Marx's and Engels' theoretical contributions).

Trotsky: Diary in Exile (the passages on Engels quoted in the article); The History of the Russian Revolution (for the application of dialectical materialism to historical analysis); In Defence of Marxism (for the continuation of the struggle against revisionism).

IDOM corpus: Articles on dialectical materialism, the Second International, the state and revolution, and the critique of reformism. Against the Stream episodes on Engels' life and theoretical contributions.

Broader Marxist tradition: Plekhanov's The Development of the Monist View of History (for the defence of dialectical materialism); Lukács' History and Class Consciousness (for the debate on Engels and the dialectics of nature); Kautsky's early works (before his turn to centrism).

Key Quotes

1. "According to the materialist conception of history, the ultimately determining element in history is the production and reproduction of real life. More than this neither Marx nor I have ever asserted. Hence if somebody twists this into saying that the economic element is the only determining one, he transforms that proposition into a meaningless, abstract, senseless phrase."

2. "For dialectical philosophy nothing is final, absolute, sacred. It reveals the transitory character of everything and in everything; nothing can endure before it except the uninterrupted process of becoming and of passing away, of endless ascendency from lower to the higher."

3. "The state is nothing more but a machine for the oppression of one class by another, and indeed in the democratic republic no less than in the monarchy."

4. "Two great gangs of political speculators, who alternately take possession of the state power and exploit it by the most corrupt means and for the most corrupt ends – and the nation is powerless against these two great cartels of politicians, who are ostensibly its servants, but in reality dominate and plunder it."

5. "Of late, the Social Democratic philistine has once more been filled with wholesale terror at the words: Dictatorship of the Proletariat. Well and good, gentlemen, do you want to know what this dictatorship looks like? Look at the Paris Commune. That was the Dictatorship of the Proletariat."

6. "In Marx's lifetime, I have done what I was cut out to do – I played second fiddle – and I think that I did it fairly well. I was so glad to have so splendid a first violin as Marx. And now that I am unexpectedly called upon to replace Marx in theoretical matters and play first fiddle, I cannot do so without making slips of which nobody is more keenly aware than I."