Durkheim built sociology on the claim that society is a reality sui generis, external to individuals, explicable only by social facts (4.2.1). Max Weber built his on the opposite claim: there is no such thing as a society acting. There are only individuals acting — and the sociologist's job is to grasp what their action means to them.

This lesson takes the concept that defines the difference, and the misunderstanding that has dogged it for a century.

The idea, in plain words

Social action, and its four criteria

Weber's unit of analysis is not "society." It is social action, and his definition is precise.

The second condition is narrower than it sounds, and Weber's own examples are instructive.

Not social: a solitary religious meditation. A collision between two cyclists (the collision itself is a natural event). Everyone in a street opening an umbrella when it rains — that is many people reacting identically to weather, not orienting to each other.

Social: the argument the two cyclists have after the collision. Handing over money in a shop. Deferring to someone's authority. Writing this sentence for a reader.

And note the range of "others." They need not be present, known, or alive. Money is accepted because of expectations about strangers you will never meet. A person follows a tradition out of orientation to the dead. Weber's concept covers relations mediated across enormous distances of space and time — which is what makes it usable for the analysis of capitalism, bureaucracy and religion.

The two kinds of understanding

Weber distinguishes two operations, and keeping them apart is the key to using the concept properly.

And now Weber's crucial safeguard, which is what separates his method from armchair mind-reading.

An interpretation must satisfy two criteria.

Adequacy at the level of meaning (Sinnadäquanz) — the interpretation must be intelligible: given this motive in this situation, the action follows as a coherent and typical response. A man who chops wood because he needs fuel is meaningfully adequate; a man who chops wood because it is Tuesday is not, absent further explanation.

Causal adequacy (Kausaladäquanz) — the interpretation must also fit the evidence: there must be a demonstrable probability that in situations of this type, this motive is in fact followed by this action.

Go deeper

Weber's individualism, and how far it goes

Weber's method has a strong consequence, and he states it bluntly in a 1920 letter and in Economy and Society:

"If I have become a sociologist... it is mainly in order to exorcise the spectre of collective conceptions which still lingers among us."

His position — methodological individualism (5.3):

Collectives do not act. States, nations, corporations, classes and churches are not agents. Only individuals act. When we say "the state decided," we are abbreviating a great many individual actions.

But collective concepts are indispensable, for two reasons Weber is careful about. First, they are convenient shorthand for complex patterns of action. Second — and more importantly — they exist in the minds of actors and thereby have causal force. People's belief that the state exists, that a firm has claims on them, that a nation is a thing worth dying for, is a fact about their subjective meaning and shapes what they do. A sociologist may not treat the nation as an actor; a sociologist must treat belief in the nation as a cause.

The criticisms

How do you know you got the meaning right? The hermeneutic problem. Weber's answer is causal adequacy, which is a real answer but not a complete one — evidence about the consequences of a motive is not the same as direct access to the motive. Later interpretive traditions (5.4, 7.4) developed richer procedures: triangulation, member checking, thick description (Geertz), analysis of naturally occurring talk (conversation analysis).

Do actors know their own motives? This is the sharpest objection, and it comes from three directions at once. Freud says much motivation is unconscious. Marx says people's accounts of their own reasons are shaped by ideology (4.1.7). Bourdieu says most conduct runs on habitus — practical dispositions below the level of deliberate meaning (5.10) — and that asking people to explain their practice generates rationalisations, not causes.

Weber has a partial defence: much action, in his own scheme, is traditional or affectual and involves little conscious deliberation (4.3.2), and he explicitly says these lie "on the borderline of what can be called meaningfully oriented action." He is not committed to the view that people are transparent to themselves. But the objection has force, and the honest position is that Verstehen works best for deliberate, reason-giving action and least well for habit — which is a large part of life.

Is it just guessing? The standing positivist complaint. The reply is the double-adequacy requirement. But it should be conceded that in practice, interpretations are underdetermined by evidence more often than Weber's method admits.

Whose meanings? Weber studies the meanings actors hold; he is less interested in where those meanings came from and whose interests they serve. Marx and Gramsci ask that question (4.1.7, 5.6), and it is a real gap.

The enormous afterlife

Nearly the whole qualitative tradition descends from this.

Alfred Schutz — the most rigorous development. The Phenomenology of the Social World (1932) argued that Weber's concept of meaning was insufficiently examined, and rebuilt it on Husserl's phenomenology: the lifeworld, typifications, stocks of knowledge at hand, and the distinction between because-motives (rooted in the past) and in-order-to motives (projected futures). Schutz fled Austria in 1938 and taught in New York, where his students carried the programme into American sociology.

Berger and Luckmann, The Social Construction of Reality (1966) — Schutz's students, synthesising him with Durkheim and Mead (2.4.1).

Garfinkel's ethnomethodology (2.4.3) — how members produce the sense of an ordinary world, moment to moment.

Symbolic interactionism (5.4) — meaning arising in interaction; Blumer's three premises are Weberian in spirit and Meadian in ancestry.

Geertz's interpretive anthropologythick description: distinguishing a twitch from a wink from a parody of a wink requires exactly Weber's point, that the physical motion underdetermines the act.

And every modern qualitative method: ethnography, in-depth interviewing, life history, discourse analysis, grounded theory. Each is a technique for doing what Weber said had to be done.

Where the argument stands now

The dispute has not been resolved, and probably cannot be, but it has been productively reorganised.

Almost nobody now defends pure behaviourism — explaining human conduct with no reference to meaning. Even economics has absorbed beliefs, expectations and framing.

Almost nobody defends pure interpretivism either — the position that only understanding is possible and causal explanation is inappropriate. Mixed methods, in which qualitative work establishes mechanisms and quantitative work establishes their distribution and strength, is the working compromise, and it is Weber's double adequacy in modern dress.

Mechanism-based explanation — Hedström and Swedberg's analytical sociology, Elster's work — is explicitly Weberian: a good explanation names the process by which a cause produces an effect, and for human conduct that process usually runs through what people believe and want. "Meaningfully adequate and causally adequate" is a fair description of what a good mechanism claim requires.

And the new empirical frontier: large-scale behavioural data — clicks, purchases, movements, sensor traces — offers correlational power on a scale Weber could not imagine, with the meanings stripped out. It is precisely his "incomprehensible statistic," industrialised. The question of what such data can and cannot explain without access to what the behaviour meant is one of the live methodological arguments of the present, and Weber posed it in 1913.

Why it matters

It is the founding statement of interpretive social science, and therefore the ancestor of ethnography, qualitative interviewing, discourse analysis and everything in 7.4.

It supplies the double standard that keeps social explanation honest. A claim about human conduct should make sense from the inside and survive contact with evidence. Most bad social science fails one of the two — either an elegant interpretation nobody checked, or a robust correlation nobody can explain.

It rescues the actor without abandoning structure. Weber's individuals act meaningfully inside situations they did not choose, and the aggregate of their action produces structures — bureaucracy, markets, the iron cage — that then constrain them. That is structure and agency (1.3.1) handled with unusual care.

And it opens the whole of Topic 4.3. Every subsequent Weber concept is built from this one: the types of action are types of meaning (4.3.2); rationalisation is a change in the kind of meaning that predominates (4.3.3); authority is defined by what makes obedience meaningful to the obeyer (4.3.5); and the Protestant ethic argument is a demonstration that a religious meaning can have world-historical economic consequences (4.3.7).