The Collapse of the Fact/Value Dichotomy and Other Essays

1. The artificial split between facts and values is a philosophical myth

The view that value judgments are not factual claims and the inference that if they are not then they must be subjective have a long history.

The historical dogma. The rigid separation of "is" (what is) and "ought" (what should be) traces back to David Hume and was later radicalized by 20th-century logical positivists. These thinkers argued that only empirically verifiable statements or logical tautologies possess cognitive meaning, while ethical and aesthetic judgments are merely emotional expressions. This overinflated dichotomy has corrupted our understanding of both rational debate and the nature of reality.

The parallel collapse. This dichotomy mirrors another famous philosophical division: the analytic-synthetic distinction, which separated definitional truths from empirical facts. Just as Willard Van Orman Quine demonstrated that scientific statements cannot be neatly divided into pure convention and pure fact, the fact-value dichotomy collapses under close scrutiny. The two dogmas supported each other, and the fall of one inevitably dragged down the other.

Real-world consequences. Treating values as purely subjective has had devastating real-world consequences, particularly in the social sciences. By declaring that "ends" cannot be rationally discussed, policy-makers and economists insulated their ethical assumptions from critical debate.

• Hume's "is/ought" distinction was built on an outdated, pictorial view of the mind.
• Logical positivists relegated all of ethics to a "wastebasket" category of cognitive meaninglessness.
• The collapse of these rigid boundaries opens up new intellectual possibilities for rational normative discourse.

2. Fact and value are deeply entangled in our everyday language

This book tries to show that these two dichotomies, 'fact versus value judgment' and 'fact versus analytic truth,' have corrupted our thinking about both ethical reasoning and description of the world, not least of all by preventing us from seeing how evaluation and description are interwoven and interdependent.

Thick ethical concepts. The primary evidence of this entanglement lies in "thick ethical concepts" such as cruel, brave, generous, or rude. These words do not merely describe behavior, nor do they simply express an attitude; they do both simultaneously. To call a historical figure "cruel" is to provide a factual description of their actions while simultaneously rendering an ethical judgment.

The failure of factorization. Noncognitivist philosophers have tried to salvage the dichotomy by "factoring" these concepts into a neutral descriptive component and an evaluative attitude. However, this linguistic surgery fails because we cannot define the descriptive meaning of a word like "cruel" without using the word itself or its synonyms. The descriptive and evaluative aspects are conceptually fused.

Imaginative identification. To use thick ethical concepts with any degree of sophistication, an observer must be able to imaginatively identify with the evaluative point of view of the culture or practice in question.

• Thick concepts (e.g., brave, vicious, elegant) defy simple classification as either purely descriptive or purely normative.
• Factorization attempts to strip the evaluative "flavor" from a word while leaving a neutral factual core, which is impossible.
• Understanding these concepts requires a "second nature" of moral sensitivity rather than a neutral, scientific gaze.

3. Science itself is built upon indispensable epistemic values

Beginning in Chapter 2, I argue (following Peirce and the other classical pragmatists) that science itself presupposes values—that epistemic values (coherence, simplicity, and the like) are values, too, and in the same boat as ethical values with respect to objectivity.

Epistemic values. The common belief that science is a purely objective, value-free enterprise is a profound misunderstanding of scientific practice. When scientists choose between competing hypotheses, they do not rely solely on raw observational data. Instead, they must evaluate theories based on epistemic values such as coherence, simplicity, plausibility, and elegance.

No external justification. These epistemic values are genuine values, and they are just as resistant to purely physicalist reduction as ethical values. We cannot justify our reliance on simplicity or coherence by appealing to some value-free standard of truth, because our very understanding of what is "true" is viewed through the lens of these epistemic values. The justification is circular, but it is the only justification we have.

The objectivity of values. If science—the gold standard of objective fact—presupposes values, then the argument that values are inherently subjective because they are not "factual" completely falls apart.

• Epistemic values include coherence, simplicity, predictive success, and beauty.
• Theory selection is a normative practice governed by "what ought to be" in the realm of reasoning.
• Denying the objectivity of epistemic values undermines the objectivity of scientific facts themselves.

4. Welfare economics must integrate ethical reasoning to be meaningful

At the heart of that approach is the realization that issues of development economics and issues of ethical theory simply cannot be kept apart.

The engineering approach. For decades, modern economics has prided itself on being a "positive" science, free from metaphysical and ethical assumptions. This "engineering approach" treats human motivation as purely self-interested and evaluates social states using highly restrictive, supposedly value-neutral criteria like Pareto optimality. However, this self-imposed limitation has severely impoverished welfare economics, rendering it blind to massive global disparities.

The capabilities approach. Amartya Sen transformed this landscape by introducing the "capabilities approach," which argues that welfare should be measured by what people are actually free to do and be—their "capabilities to achieve functionings." Evaluating these capabilities (such as being well-nourished, escaping premature mortality, and having self-respect) inherently requires making qualitative, ethical judgments.

Information base expansion. By expanding the information base of economics to include non-utility values like freedom, rights, and health, Sen brings economics back to its classical roots.

• Adam Smith was a professor of moral philosophy who never intended for economics to be divorced from ethics.
• Pareto optimality is a weak ethical criterion that can justify extreme inequality as long as no wealthy person is made worse off.
• Real-world metrics like longevity and access to education are "entangled" concepts that combine factual description with ethical value.

5. Rational choice theory fails by ignoring existential complexity and autonomy

Thinking of everything as a 'commodity' will necessarily blind one to the most elementary facts about the moral life.

The completeness axiom. Standard decision theory and rational choice theory rely on the "completeness axiom," which assumes that a rational agent must be able to compare any two options and either prefer one or be completely indifferent between them. This mathematical convenience fails to capture the reality of human life, where we often face choices between fundamentally incomparable ways of life.

The value of autonomy. When an agent is torn between two incomparable paths—such as a life of material comfort versus a life of selfless service—they are not merely choosing between "commodities." The very act of making the decision of their own free will is an essential part of what they value. To have a third party or a coin toss make the decision for them destroys the autonomy that gives the chosen life its value.

Existential decisions. These existential decisions require the agent to reflectively endorse a set of reasons that may not even be fully formed prior to the choice itself.

• The completeness axiom falsely equates a state of unresolved conflict with simple indifference.
• Autonomy is not a subjective preference but a structural requirement for a meaningful moral life.
• Rationality cannot be reduced to a mathematical algorithm that maximizes a pre-existing utility function.

6. Objectivity does not require a Platonic realm of absolute moral facts

If something is a good solution to a problematical human situation, then part of the very notion of its being a good solution is that human beings can recognize that it is.

A pragmatist alternative. Many philosophers believe that for moral judgments to be objectively true, there must exist a Platonic realm of "moral facts" or "ethical properties" independent of human experience. When they find no such entities in the physical world, they lapse into moral skepticism or relativism. John Dewey offered a thoroughly non-Platonic alternative: objectivity is found in the successful resolution of concrete, problematic human situations.

Making and discovering. We do not discover pre-existing moral laws floating in the cosmos; rather, we make ways of dealing with problematic situations, and we discover which of these solutions are better or worse. This process of "criticism" and "appraisal" is entirely analogous to scientific inquiry, where we constantly revise both our means and our ends in light of experience.

No special sense organ. We do not need a mysterious "moral sense" to perceive values, just as we do not need a special organ to perceive other complex, conceptually informed states like elation or friendliness.

• Objectivity is not about matching words to "things-in-themselves" but about solving real-world problems.
• The distinction between the "valued" (what we happen to desire) and the "valuable" (what is warranted upon reflection) is established through criticism.
• Moral realism can be thoroughly fallibilist, recognizing that our ethical concepts are constantly evolving.

7. The distinction between universal norms and local values is untenable

Relativism of any kind with respect to values cannot leave 'norms' (maxims upon which reason has imposed 'the form of law,' in Korsgaard's terminology) unaffected.

The Habermasian split. Jürgen Habermas attempts to rescue moral objectivity by drawing a sharp distinction between universal "norms" of obligation (which are rationally binding on everyone) and culturally relative "values" (which are contingent social products of specific "life worlds"). While this Kantian approach seeks to protect the universal validity of human rights, it relegates the vast majority of our ethical concepts to the realm of subjective preference.

Interdependence of norms and values. This dichotomy fails because our universal norms must be formulated using the very "thick" ethical concepts that Habermas classifies as culturally relative values. A norm like "do not be cruel" is empty unless we have a shared, objective understanding of what constitutes "cruelty." Without a rich, objective vocabulary of values, our universal norms lose all concrete content.

The limits of formal discourse. Discourse ethics cannot stand alone as the sole source of moral validity.

• Universal norms are empty formalisms without the "thick" ethical concepts that give them meaning.
• Moral perception—the ability to see that someone is suffering or being humiliated—requires evaluative sensitivity, not just logical consistency.
• A purely procedural ethics cannot guarantee correct moral outcomes without a substantive commitment to human flourishing.

8. Philosophers of science have historically evaded the reality of values

Apparently any fantasy... is regarded as preferable to rethinking the whole dogma (the last dogma of empiricism?) that facts are objective and values are subjective and 'never the twain shall meet.'

The flight from judgment. Throughout the twentieth century, prominent philosophers of science went to extraordinary lengths to avoid admitting that scientific inquiry relies on informal, qualitative value judgments. They suffered from a deep-seated suspicion of any form of rationality that could not be reduced to a formal algorithm, a deductive proof, or a statistical calculation.

Failed reductionist fantasies. Rudolf Carnap spent decades trying to reduce theory selection to a formal inductive logic, while Hans Reichenbach attempted to "vindicate" induction through a purely mathematical rule of frequency. Karl Popper claimed that science requires only deductive logic and the falsification of hypotheses. All of these brilliant systems ultimately failed because they could not eliminate the indispensable role of human judgment in deciding which theories are coherent, plausible, or simple.

Self-refuting relativism. Those who abandon the search for objective scientific methods often lapse into a self-refuting relativism, claiming that science is merely the consensus of a particular culture.

• Carnap's inductive logic was limited to simple, artificial languages and could not handle real scientific theories.
• Popper's falsificationism ignores the fact that scientists routinely retain theories in the face of conflicting data by making pragmatic adjustments.
• Denying the objectivity of epistemic values ultimately destroys the objectivity of scientific facts.

9. Pragmatism offers a fallibilist, democratic path to objective value inquiry

The solution is neither to give up on the very possibility of rational discussion nor to seek an Archimedean point, an 'absolute conception' outside of all contexts and problematic situations, but—as Dewey taught his whole life long—to investigate and discuss and try things out cooperatively, democratically, and above all fallibilistically.

The democratic method. If we reject both the dogmatic search for absolute, Platonic foundations and the lazy surrender to cultural relativism, we are left with the pragmatist method of cooperative, democratic inquiry. This approach recognizes that our ethical and scientific beliefs are always shaped by our historical and cultural contexts, but insists that they can still be objectively tested and improved through open discussion and experimentation.

Fallibilism and anti-skepticism. Pragmatism uniquely combines a radical fallibilism—the acknowledgment that any of our beliefs might turn out to be wrong—with a robust anti-skepticism. We do not need a guarantee of absolute certainty to justify our moral and scientific practices; we only need to show that our current beliefs are the most reasonable solutions to the problems we have actually encountered. Doubt, like belief, must be earned through concrete evidence.

The democratization of inquiry. By applying the same standards of open, non-coercive, and democratic discussion to both scientific and ethical questions, we can rebuild a unified picture of human reason.

• Fallibilism means that no belief is immune to criticism, but we do not doubt without a specific reason.
• Democratic inquiry requires that we listen to the "cries of the wounded" and include all affected parties in our discussions.
• Reason is not a cold, calculating machine but a flexible, humane tool for improving the quality of our shared lives.