Expressivity (expressivité)

Merleau-Ponty's name for the operation by which a phenomenon's internal arrangement indicates another phenomenon — at the perceptual register (the Thursday course 1953 definition: "the property that a phenomenon has through its internal arrangement to disclose another [phenomenon] that is not or even never was given") and at the linguistic register (the Monday course 1953 definition at L6 [67] marginal: "the capacity that [a] certain fold [pli] of language has to indicate, i.e., to communicate, [a] certain depth [relief] of the universe of thought"). The bridge concept across MP's two 1953 inaugural courses at the Collège de France; the operative apparatus by which conquering language works.

Key Points

  • Two registers, one operation. The Thursday course defines expressivity as a property of phenomena (a perceived configuration discloses what is not given). The Monday course defines it as a capacity of language (a fold of language indicates depth of thought). Smyth (Translator's Introduction, p. xxv): "upon reflection the difference between disclosure and communication may be little more than nominal." The two definitions are the same operation seen from two sides.
  • The formal definition (Monday course, L6 [67] marginal): "Expressivity = [the] capacity that [a] certain fold [pli] of language has to indicate, i.e., to communicate, [a] certain depth [relief] of the universe of thought." The grammatical structure of the definition matters: language is a fold, thought is a depth; expressivity is the capacity-to-indicate of the first for the second.
  • Diplopia analogy (L6 [68]): "diplopia [is] reduced, because my 'machine for seeing' arranges my eyes." Expressivity-in-vision: the body settles the perceptual diplopia into single seeing. Expressivity-in-speech: the established common language [grand langage] (and our own idiom [notre petit langage]) responds to intention as if "made expressly for saying specifically what we said." The visual analogy from Valéry's Degas Danse Dessin anchors the structural parallel.
  • The "fold / depth" image as a one-line operative metaphor. The pli is the local articulation; the relief is the latent organization of the universe of thought (or — in the Thursday course — of the universe of perception). Expressivity is not a property of the pli alone, nor of the relief alone, but of the capacity-to-indicate between them.
  • Operates through the implex. The implex is what in us "responds to solicitations in a way that we wouldn't have believed ourselves capable" (L6 [69]). Expressivity is the operation; the implex is the bodily-acquired apparatus by which the operation is possible. Memory is "a famous implex"; language is "the animal of words" (L6 [71]).
  • Saussurean-diacritical (Monday course, L6 [64]–[66]). What sets expressivity working is not a mystical correspondence of concept to sound but a homology between systems of differences. Per L6 [66]: "speech as [a] system in the process of differentiation can provide a diagram of sense in the process of differentiation." The fold of language and the depth of thought are coupled because both are systems-in-process-of-differentiation. The 1953 Monday course's expressivity is structurally continuous with the Thursday course's diacritical theory of perception.
  • The innere Sprachform connection (L6 [69]): MP invokes Humboldt's innere Sprachform (via Goldstein, per Translator's Note 19) as another name for the depth-layer of acquired language that expressivity operates on. Smyth (Translator's Note 19) traces MP's appropriation through his 1949–52 Sorbonne lectures and the *Signs* essay "On the Phenomenology of Language" (1951).
  • The "expressive operation in which there is a call from me to others": Smyth (Translator's Introduction) glosses conquering language as "an expressive operation in which there is a call from me [i.e., the writer] to others [i.e., the readers]" — the communicative side of expressivity; the perceptual side appears in the Thursday course as "Movement is to the trace what breath is to the sound, and is read in it just like breath is read in the sound" (Thursday course 87).
  • "Expressivity dozes off in constituted language" (Monday course, L6 [66]–[67]). The asymmetry: in ready-made / constituted language, expressivity is dormant; in active conquering speech, expressivity is operative. The strict prose/poetry distinction collapses into this asymmetry between dormant and active expressivity.
  • Bridge to PoW and ILVS. MP's contemporaneous *Prose of the World* and the Signs-published "Indirect Language and the Voices of Silence" (June–July 1952) deploy the same operative concept under different vocabularies — "expressive operation," "indirect language," "coherent deformation."

What the Concept Does

  • Bridges two MP-1953 courses into a single project. The Thursday course works expressivity as disclosure within perception; the Monday course works it as communication via language. Together they constitute MP's response to Hyppolite's 1946 objection that PhP had "no cohesion between description of perception and conception of 'the being of sense.'"
  • Resolves Fink's third paradox of transcendental phenomenology (per Smyth's Introduction). Fink's "permanent perplexity" — how can transcendental insights be communicated when only mundane language is available? — is dissolved if language has the capacity-to-indicate depths that exceed its surface (the pli indicates the relief). The expressivity operation lets the phenomenologist's worldly expressions carry the transcendental.
  • Grounds lateral universality / "universality without a concept." The reader, not initially possessed of the new signification, is brought to it through the writer's expressivity — not by subsumption under a concept (classical universal) but by being-drawn-toward (synthesis-in-succession).
  • Replaces the "mystical union" miracle with a diacritical operation. Where Valéry diagnoses the union of sound and sense as a "miracle" (i.e., an impossibility), MP's expressivity-as-diacritical-operation makes the union "founded in reason."

What It Rejects

  • Subordinationist-instrumental theories of language (the writer "wields" language toward a pre-formed signified) — at L6 [67]–[68] MP's diplopia analogy makes the language and the intention mutually adjusting.
  • Pure-spontaneity / inspiration models in which "the voice" speaks through a passive medium — MP keeps the writer at the heart of the operation (the implex is acquired through exercise, not given).
  • Valéry's "mystical union" diagnosis of poetic sound-sense correspondence — see Saussurean-diacritical above.
  • A strict prose/poetry distinction in which prose alone communicates (Sartre's What is Literature?) — "Expressivity dozes off in constituted language" applies symmetrically to both registers; only the active/conquering side has expressivity working.
  • The Husserlian privileging of Vorstellung as the model of consciousness (this rejection is most explicit in the Sartre/Parain Appendix at [167]v–[168]v, where MP's a-focalism coinage works the same anti-Vorstellung line).

Stakes

  • For the philosophy of language: expressivity is the operation that makes a non-conventionalist theory of meaning possible. Conventionalism explains why a sign has a meaning (by convention); expressivity explains how a sign gets a new meaning (by the conquering operation on the diacritical system).
  • For the philosophy of perception: expressivity in the Thursday course is what dissolves the Gestalt-vs-intellectualism dichotomy on perception (see Thursday-course source Core Arguments).
  • For the methodology of phenomenology: per Smyth, expressivity is MP's structural answer to Fink's third paradox. The 1953 expressivity-apparatus is the methodological foundation of V&I.
  • For art-historical genealogy: expressivity threads MP's reading of Malraux's "coherent deformation" (painting) into language (the 1953 Monday course's langage conquérant) into ontology (the late V&I "flesh of language"). It is the operative term that lets the genealogy hang together.

Problem-Space

The deep problem-space expressivity addresses: how can the depth of thought (or the depth of being) come to expression in the surface of language (or in the surface of perception) without being either pre-given to it or arbitrarily superimposed on it? The classical alternatives — empiricism (depth is built up from surface) and intellectualism (depth is imposed on surface) — both fail. Expressivity names the third way: the capacity-to-indicate by which depth and surface are coupled in a diacritical operation.

Motif Weight & Corpus Recurrence

Heading in motifs.md: not yet a tracked motif (the wiki has expressive-will, imperfecting-expression, primordial-expression, lived-gestural-expression, all sub-cases). Expressivity proper is HUB-weight in Thursday course and HUB-weight in Monday course; recurs in *PoW* and *Signs* (as "expressive operation" / "indirect language") and in *V&I* (as "flesh of language" / "wild meaning"). Cross-corpus weight assessment: HUB.

Positions

The concept is not currently in multi-source contention requiring full Positions treatment. The principal interpretive crux is whether the perceptual register (Thursday course) and the linguistic register (Monday course) are the same operation in two materials (MP and Smyth's reading) or two analogically-linked but distinct operations (a possible objection if one wanted to preserve a deeper division between perception and language). MP's position is the former; V&I's "flesh of language" radicalizes the unity.

Connections

Open Questions

  • Is the perceptual and linguistic registers' "same operation" the same operation or two structurally-isomorphic operations? MP and Smyth read it as the same operation in different materials; a stronger objection could distinguish them (perceived organization is given, linguistic articulation is made). The diacritical Saussurean reading is what lets MP affirm sameness.
  • What about non-linguistic, non-perceptual cases — e.g., gesture, mathematical notation, music? The wiki has lived-gestural-expression and *Nature* develops biological-expressivity; presumably these are all cases of the same operation. The 1953 sources don't cover them explicitly.
  • Relation to V&I's "wild meaning" (sens sauvage): wild meaning is the content the expressivity operation indicates; expressivity is the operation itself. They are not synonyms but the operation and its object.
  • Does expressivity require Saussurean diacriticality? MP's L6 [65] move assumes it. A more conservative view might say expressivity is the more general operation and the Saussurean reading is one specification.

Synthetic Claims

This page is a Wiki home for one live claim. Live claims are cited with provisional framing per CLAUDE.md §Claims Register Format.

Sources

  • merleau-ponty-2020-sensible-world-expression — Thursday course 1953 definition: "the property that a phenomenon has through its internal arrangement to disclose another [phenomenon] that is not or even never was given" (28). Major locus classicus for the perceptual register.
  • merleau-ponty-2026-literary-use-language — Monday course 1953 definition at L6 [67] marginal: "the capacity that [a] certain fold [pli] of language has to indicate [. . .] [a] certain depth [relief] of the universe of thought." L6 [68] diplopia analogy + Degas Danse Dessin. L6 [69] innere Sprachform via Humboldt-Goldstein. L6 [66]–[67] expressivity-dozes-off-in-constituted-language. L1 [20] indirect-expression-and-lateral-universality.
  • merleau-ponty-1973-prose-of-the-world — "expressive operation" = the linguistic-register expressivity. Coextensive with the Monday course's conquering language.
  • merleau-ponty-1964-signs — "Indirect Language and the Voices of Silence" (June–July 1952 / Signs 1960) is the public version of the operation. "On the Phenomenology of Language" (1951, Signs) uses the same innere Sprachform trope (per Translator's Note 19).
  • merleau-ponty-2010-child-psychology-pedagogy — Sorbonne 1949–52 anchors the innere Sprachform (Goldstein) line and the Piaget-contrast.
  • merleau-ponty-1968-visible-and-invisible — late radicalization: "flesh of language," "wild meaning."