Donald Davidson

Quick Facts

• Full name: Donald Herbert Davidson
• Lived: 1917-2003
• Place: United States
• Main fields: philosophy of language, philosophy of mind, action theory, epistemology
• Tradition: Analytic Philosophy
• Known for: radical interpretation, the principle of charity, truth-conditional semantics, anomalous monism, reasons as causes, triangulation

The Big Question

How can words, beliefs, actions, and the world fit together if meanings are not private objects inside the head?

Davidson's answer was that interpretation is the starting point. We understand a person by linking their sentences, beliefs, desires, actions, and surroundings into one mostly coherent pattern. Meaning is public enough to be interpreted, but it is not just a list of definitions.

In One Minute

Donald Davidson was one of the most important American analytic philosophers after W. V. O. Quine. He worked mostly through essays rather than one giant system, but the essays fit together tightly.

His central thought was simple and demanding: to understand language and mind, look at how an interpreter could make sense of a speaker in a shared world. This led him to truth-conditional semantics in language, the claim that reasons can cause actions, and anomalous monism in philosophy of mind.

He rejected the idea that different cultures or minds live inside totally separate conceptual schemes. If we can interpret others as speaking, believing, and acting, then we already share enough truth, world, and rationality to make disagreement possible.

What They Taught

Davidson taught that meaning, belief, and action have to be understood together. You cannot first decode a person's words, then separately discover their beliefs, then separately explain their actions. Each part helps fix the others.

Suppose you meet a speaker whose language you do not know. They point at rain and say "gavagai," or some other sound you have never heard. You cannot simply open a private window into their mind. You watch what they say, what they notice, what they do, and what is happening around both of you. Over time, you build an interpretation: maybe that sentence means "It is raining," or "Rain is falling here," or "Bad weather has arrived." Davidson called this kind of imagined case radical interpretation.

Radical interpretation shows why Davidson put truth at the center of meaning. To understand a sentence is to know what would make it true. If someone says "The lamp is on," you understand them when you know that the sentence is true if and only if the lamp is on. This sounds obvious in English, but Davidson thought a full theory of meaning should explain how infinitely many sentences get their meanings from reusable parts such as names, predicates, and logical structure.

This is where Alfred Tarski mattered. Tarski built a formal theory of truth for logical languages. Davidson borrowed the shape of that theory and used it as a model for meaning. A good theory for a speaker's language should produce truth conditions for their sentences. It should tell us, systematically, what has to be the case for those sentences to be true.

Interpretation also requires charity. The principle of charity says that we usually have to treat a speaker as mostly coherent and mostly right about obvious shared things. This is not a moral compliment. It is a method. If you translate someone as being wrong about every tree, every fire, every cup, and every person in front of them, you lose your grip on what their words mean at all. Error is possible only against a background of agreement.

Davidson applied the same broad picture to action. In "Actions, Reasons, and Causes," he argued that reasons can be causes. If you open the window because you want fresh air and believe the room is stuffy, that belief and desire explain your action by causing it in the right way. A rational explanation is not opposed to a causal explanation.

In philosophy of mind, Davidson defended anomalous monism. "Monism" means that there is one world of events: mental events are also physical events. "Anomalous" means that mental descriptions do not fall under strict laws the way physics aims to. A decision to raise your hand is a physical event in your body, but it is also understood as a decision only inside a pattern of beliefs, desires, evidence, and reasons. Davidson wanted both points: minds are part of the physical world, but psychology does not reduce cleanly to physics.

Late in his work, Davidson described knowledge through triangulation. A person, another interpreter, and a shared object form a triangle. For example, a child and an adult both react to a dog. The child learns that "dog" is tied not just to a private sensation, but to something both people can attend to, correct each other about, and talk about. This made Davidson skeptical of the idea that thought could be wholly private.

Key Ideas With Examples

• Radical interpretation: interpreting a speaker from public evidence alone, with no dictionary. If a speaker says "water here" whenever water is nearby and drinks from the cup, you connect the words, behavior, and shared situation.
• Principle of charity: the rule that interpretation must usually make the speaker broadly rational and broadly correct about plain cases. If someone points at a nearby tree in daylight, the first guess is not that they believe it is a cloud.
• Truth-conditional semantics: the view that sentence meaning is explained by what would make the sentence true. "The kettle is boiling" is true if and only if the kettle is boiling.
• Tarski's role: Davidson used Tarski's formal truth theory as a model for meaning. The point was not that Tarski solved ordinary language by himself, but that truth conditions could show how sentence meaning is built systematically.
• Reasons as causes: beliefs and desires can cause actions while also making them intelligible. Your belief that the doorbell rang and your desire to answer it can cause you to walk to the door.
• Events and actions: Davidson treated events as particular happenings. The same event can be described in different ways. One movement can be "moving my finger," "flipping the switch," and "turning on the light."
• Anomalous monism: each mental event is a physical event, but there are no strict bridge laws from mental vocabulary to physical vocabulary. A headache is physical, but "whenever brain state X occurs, the person has exactly this thought for exactly this reason" is not how ordinary psychology works.
• Triangulation: thought and meaning arise in a three-way relation among self, others, and world. A child learns "red ball" by sharing attention with another person toward the same red ball.
• Rejection of conceptual schemes: Davidson denied that there are totally untranslatable schemes organizing raw reality in radically different ways. If we can identify others as having beliefs and making claims, we already share enough standards of truth and interpretation to compare views.
• Quine and Davidson: Quine pushed holism, public evidence, and the problem of translation. Davidson accepted much of that starting point, but gave truth and interpretation a more central role and rejected the scheme-content picture he thought still lingered in Quine.

Major Works

• "Actions, Reasons, and Causes" (1963): argues that the reasons for an action can also be its causes. This helped revive causal theories of action.
• "Truth and Meaning" (1967): proposes that a theory of meaning can take the form of a truth theory. It connects ordinary meaning with formal work inspired by Tarski.
• "Mental Events" (1970): presents anomalous monism. The essay tries to hold together mental causation, physicalism, and the claim that mental life has no strict laws.
• "Radical Interpretation" (1973): explains how an interpreter could build a theory of meaning from public evidence, using truth and charity.
• "On the Very Idea of a Conceptual Scheme" (1974): attacks the idea of radically different conceptual schemes imposed on neutral content.
• Essays on Actions and Events (1980): collects Davidson's major work on action, causation, events, and mind.
• Inquiries into Truth and Interpretation (1984): collects central essays on language, truth, meaning, and interpretation.
• Subjective, Intersubjective, Objective (2001): gathers later essays on knowledge, objectivity, and triangulation.

Why It Matters

Davidson matters because he connected areas that are often taught separately. Language, mind, action, causation, truth, and knowledge all become parts of one problem: how interpretable agents live in a shared world.

His work changed philosophy of action by making causal explanation respectable again. It changed philosophy of language by showing how truth conditions could guide a theory of meaning. It changed philosophy of mind by offering a non-reductive physicalism: mental life is physically real, but it is not captured by strict psychological laws.

He also gave analytic philosophy a strong answer to relativism. Davidson did not deny cultural difference or deep disagreement. He denied that disagreement makes sense unless there is enough shared world and shared interpretability for people to count as disagreeing in the first place.

Proponents, Critics, and Opponents

Davidson is closely tied to W. V. O. Quine. Quine gave him the problems of translation, holism, and public evidence. Davidson took those problems in a more truth-centered direction.

He overlaps with Ludwig Wittgenstein in resisting private meanings, but Davidson's route is different. Wittgenstein looks to use, practice, and rule-following. Davidson looks to interpretation, truth conditions, and rational patterns.

Hilary Putnam shares Davidson's rejection of simple realism, but Putnam was more willing to keep scheme-sensitive forms of realism in play. Davidson was harsher on the very idea of conceptual schemes.

J. L. Austin and John Searle put more weight on speech acts, intentions, and social conventions. Davidson put more weight on what makes a speaker interpretable through truth and belief. Saul Kripke made reference, names, and necessity central in a different branch of analytic philosophy of language.

Critics argue that the principle of charity may make radical disagreement look too easy to dissolve. Critics of anomalous monism, including many later philosophers of mind, argue that Davidson does not fully explain how mental properties make a causal difference if every causal law is physical. Others think his attack on conceptual schemes moves too quickly from "we can interpret them" to "we share a world in the needed sense."

Related Pages

• Analytic Philosophy
• W. V. O. Quine
• Ludwig Wittgenstein
• Hilary Putnam
• Saul Kripke
• J. L. Austin
• John Searle