Pragmatism and Kant: A Critical Inheritance

Few relationships in the history of Western philosophy are as layered and consequential as the one between pragmatism and the philosophy of Immanuel Kant. Pragmatism did not emerge in a vacuum. It grew, in large part, out of a serious – and critical – engagement with the Kantian tradition. The pragmatists neither simply accepted Kant nor simply rejected him. Instead, they did something philosophically far more interesting: they transformed what they inherited, keeping what was useful and discarding what they saw as speculative excess. Understanding this relationship is key to understanding what pragmatism actually is and why it remains one of the most vital philosophical traditions today.

Kant’s philosophical framework: a brief orientation 🔗

To grasp what pragmatists were reacting to, a basic sense of Kant’s project is essential. In his landmark work, the Critique of Pure Reason (1781), Kant set out to determine the conditions under which human knowledge is possible. His central claim was that the human mind does not passively receive the world – it actively structures experience through fixed categories (such as causality, substance, and unity) and forms of intuition (space and time). These mental structures, Kant argued, are a priori – they exist prior to and independently of experience, and they are universal and necessary for all rational minds.

Critically, Kant also drew a sharp distinction between what we can experience – the world of phenomena – and the world as it is in itself, independent of our perception – the realm of noumena, or things-in-themselves (Ding an sich). We can never know things-in-themselves directly; we can only ever know the world as it appears to us, filtered through our cognitive apparatus. This framework was deeply influential and deeply controversial – and it set the stage for the pragmatist response.

The Kantian seed of pragmatism 🔗

The pragmatist tradition’s debt to Kant is not metaphorical – it is quite direct. Charles Sanders Peirce, the founder of pragmatism, famously acknowledged that his study of Kant’s Critique of Pure Reason led him directly to what he called the pragmatic maxim – his foundational rule for clarifying the meaning of concepts by tracing their practical consequences. Peirce was drawn to Kant’s use of the term pragmatisch to describe empirically conditioned laws, those grounded in and applying to experience, and he built on this usage to develop his own philosophical method. As noted by scholars of the history of pragmatism, Peirce’s view that meanings take the form of prescriptions for action – rules about what one can expect from a concept under specific conditions – was directly linked to Kantian ideas about how concepts operate.

Beyond this, Kant’s broader critical attitude – his insistence on examining the conditions of knowledge rather than simply assuming them – shaped Peirce’s entire philosophical method. Both thinkers shared a rejection of naive Cartesian doubt: rather than starting from a position of manufactured skepticism, both believed inquiry should begin from within one’s actual intellectual situation, taking for granted the beliefs that are not in question while subjecting others to scrutiny. As Gabriele Gava has argued, Kant’s anti-Cartesian stance displayed deep structural similarities with Peirce’s own rejection of Descartes’ method of radical doubt, a stance Peirce articulated in his famous “cognition series” papers of 1868-69.

What pragmatism rejected: the static and the inaccessible 🔗

Despite this genuine debt, the pragmatists mounted a thorough and systematic critique of Kant on several fronts. The core objection was to the fixed, immutable character of Kant’s philosophical architecture. Kant’s categories of understanding were presented as permanent, universal structures of all possible rational minds – the same for every knower, in every time, in every place. For pragmatists, this was precisely the problem. A philosophy that claims to have identified the eternal and necessary conditions of all knowledge leaves no room for the flexibility, growth, and historical contingency that characterize actual human inquiry.

The problem of things-in-themselves 🔗

One of the pragmatists’ most decisive moves was their outright dismissal of Kant’s concept of the Ding an sich – the thing-in-itself. For Kant, beyond the world of phenomena lies a reality that is fundamentally inaccessible to human cognition. The pragmatists found this concept philosophically useless. According to the pragmatic maxim, a concept only has genuine meaning if it makes some conceivable practical difference to experience. A thing-in-itself that can have no bearing whatsoever on any possible experience – that can neither be indicated nor found – fails this test completely. Peirce himself, in a characteristically blunt formulation, declared that the Ding an sich was “nonsensical,” since no proposition can refer to something that can neither be indicated nor encountered in any way. From this point of view, talk of inaccessible Kantian things-in-themselves – a “True World” forever hidden behind the veil of phenomena – was simply idle speculation, to be discarded rather than debated.

The rejection of fixed categories 🔗

Kant’s twelve fixed categories of the understanding – causality, substance, unity, and so on – posed a different but equally serious problem. For Kant, these categories are the permanent, a priori scaffolding of all possible experience; they do not change, they cannot be revised, and they apply necessarily to every act of cognition. Pragmatists, deeply shaped by Darwinian evolutionary thought, could not accept this picture. If human minds and human practices are products of evolution and historical development, then the conceptual frameworks through which we understand the world should also be expected to evolve. They are tools, not eternal truths.

John Dewey made this point forcefully. He rejected Kant’s assumption that nature and intellect were categorically distinct, and he rejected the idea that knowledge must be grounded in certainty. He also rejected Kant’s postulation of a noumenal realm as an unjustified – and philosophically sterile – assumption. Dewey followed William James in criticizing Kant’s entire philosophical standpoint as too “spectatorial”: it imagined the knowing mind as a passive observer applying fixed lenses to experience, rather than as an active participant transforming and being transformed by its engagement with the world. For Dewey, this spectatorial model could not do justice to the actual dynamics of inquiry, which is always embedded in specific historical and practical contexts.

From fixed structures to flexible conceptual schemes 🔗

What pragmatism put in place of Kant’s fixed categories was something more flexible: revisable conceptual schemes. Rather than permanent mental structures inscribed into all rational minds, pragmatists proposed that the frameworks through which we organize experience are contingent, historically conditioned, and always open to revision in light of new evidence and new practical demands.

This idea finds one of its most vivid expressions in the metaphor associated with the philosopher Otto Neurath and embraced by the pragmatist tradition: our conceptual scheme is like a raft at sea. We can never abandon the raft entirely and rebuild it from scratch on dry land – we must always start from where we are, from the beliefs and frameworks we already hold. But we can, and must, repair the raft plank by plank as we sail, replacing what no longer works while staying afloat. This captures perfectly the pragmatist alternative to Kantian rigidity: we begin in the middle of things, with historically conditioned starting points, and we revise as we go.

As philosopher Sami Pihlström has argued, pragmatism is inescapably a post-Kantian orientation – it gets much of its significance from the Kantian framework it inherits. Yet it transforms that framework beyond recognition by insisting that the conditions of experience are not fixed in advance but are themselves subject to inquiry, revision, and historical change. Pragmatism and Kantianism share a resistance to naive metaphysical realism – the idea that philosophy can simply read off the fundamental structure of reality without attending to the conditions of human inquiry. But where Kant’s conditions were universal and immutable, the pragmatists’ conditions are local, practical, and revisable.

C.I. Lewis and the pragmatized a priori 🔗

Perhaps the most explicit philosophical attempt to bridge Kantian and pragmatist commitments came from C.I. Lewis (1883-1964), a transitional figure who developed what might fairly be described as a pragmatist Kantianism. In his major work Mind and the World Order (1929), Lewis accepted the Kantian insight that the mind contributes actively to the structure of experience, but he rejected Kant’s insistence that the categories doing this work are fixed and necessary. For Lewis, the a priori elements of our knowledge – our frameworks of classification and interpretation – are real, but they are chosen, and the right criterion for choosing between them is pragmatic: which framework works best for the purposes of inquiry? The categories are not eternal; they are tools that can be replaced when better tools are found.

This move is philosophically significant because it takes the core Kantian insight – that the mind structures experience – and strips it of its rigidity. The result is a picture of knowledge that is both structured (we never encounter a formless world) and flexible (the structures we use can be exchanged). Scholars like Matthew Crippen have argued that the pragmatic evolution of the Kantian a priori, as developed through James and Dewey as well, represents a fundamental shift: from the mental to the bodily, from abstract universal structures to practically embedded habits of inquiry shaped by living organisms in concrete environments.

Rorty’s radical inheritance: from Kant to conversation 🔗

Richard Rorty took the anti-Kantian strand of pragmatism furthest. In his influential Philosophy and the Mirror of Nature (1979), Rorty argued that the entire Kantian enterprise of grounding culture and knowledge on necessary, ahistorical foundations was a philosophical mistake – and a mistake with a long shadow. Drawing on Dewey, Rorty argued that philosophy must become far less concerned with finding universal normative foundations and far more like an ongoing conversation: exploratory, provisional, and always open to revision. Once we stop thinking of culture as a static edifice and start thinking of it as an open-ended dialogue, the philosopher’s task changes entirely – from foundation-layer to interpreter.

For Rorty, this meant giving up not just Kant’s fixed categories, but the very aspiration to the kind of systematic, architectonic philosophy that Kant exemplified. Pragmatism’s lesson, on this reading, is that there is no Archimedean point – no view from nowhere – from which we can adjudicate our conceptual schemes. We are always already inside some scheme or other, always talking from within a particular historical and cultural situation. The most we can do – and it is a great deal – is continue the conversation as intelligently and self-critically as possible.

A critical inheritance, not a clean break 🔗

It would be a mistake to read the pragmatist relationship to Kant as a simple rejection. Philosophers working within the pragmatist tradition have pictured their relation to Kant in genuinely diverse terms – some presenting their work as an appropriation and development of Kantian ideas, others arguing for a sharper opposition. What unites them is a shared critical posture: they take Kant seriously enough to engage with him, seriously enough to revise him, and seriously enough to insist that the revisions matter.

The Kantian inheritance in pragmatism is therefore best understood as a critical inheritance. Pragmatism took Kant’s insight that the mind actively structures experience and radicalized it: if the mind structures experience, and if minds are historically situated, biologically embedded, and practically engaged, then those structures must themselves be contingent, changeable, and answerable to practice. What Kant froze, pragmatism set in motion. The result was a philosophy that is at once post-Kantian in its orientation and anti-Kantian in its conclusions – deeply shaped by the tradition it transforms.

What do you think? If our conceptual frameworks for understanding the world are genuinely revisable rather than fixed – as the pragmatists argue – does that mean there are no stable foundations for knowledge at all, or does it simply mean that our foundations are more modest and provisional than Kant believed? And is pragmatism’s flexibility a philosophical strength, or does it risk leaving us without reliable criteria for distinguishing better from worse ways of understanding reality?

References

1. https://plato.stanford.edu/entries/pragmatism/
2. https://en.wikipedia.org/wiki/Critique_of_Pure_Reason
3. https://iep.utm.edu/pragmati/
4. https://www.encyclopedia.com/philosophy-and-religion/philosophy/philosophy-terms-and-concepts/pragmatism
5. https://www.unav.es/gep/SeminarioGava2011.pdf
6. https://plato.stanford.edu/entries/dewey/
7. https://journals.openedition.org/ejpap/459
8. https://philarchive.org/rec/CRIPEO
9. https://www.routledge.com/Pragmatism-Kant-and-Transcendental-Philosophy/Gava-Stern/p/book/9780815371953