Das Ende der Philosophie und die Aufgabe des Denkens (1964)

Author(s): Martin Heidegger Year: 1964 (this version: GA 14, 2007 — Klostermann edition with Heidegger's marginalia from his Handexemplar) Type: essay (originally Heidegger's contribution to the UNESCO Paris colloquium "Kierkegaard vivant," April 1964; published in Zur Sache des Denkens, Niemeyer 1969; reissued in GA 14, 2007)

A late short essay (24 printed pages) in which Heidegger (a) diagnoses philosophy's end not as cessation but as Vollendung — a gathering into outermost possibility realized in the dissolution of philosophy into the sciences and, ultimately, into cybernetics as the new Grundwissenschaft of an emerging Weltzivilisation — and (b) proposes a task for thinking that is neither metaphysics nor science: a preparatory, non-founding, effect-less attention to what philosophy from Plato through Hegel-Husserl has not thought — the Lichtung (clearing/openness) that grants any Scheinen (showing). The essay is the locus classicus of Heidegger's late doctrine of Lichtung, and the public stage of his explicit retraction of his 1927 Sein und Zeit identification of Aletheia with Wahrheit (truth). The essay's closing question rephrases the SuZ-task: not "Sein und Zeit" but Lichtung und Anwesenheit. The Klostermann GA 14 edition incorporates 30 of Heidegger's Handexemplar marginalia, which articulate further reframings (most importantly: the SuZ-Seinsfrage is "the abbreviated title for the question of the origin of the ontological difference," Handexemplar marginal at p. 87).

Core Arguments

Claim: Philosophy = metaphysics; metaphysics thinks beings as beings in der Weise des begründenden Vorstellens (in the manner of grounding-representation), with Being having shown itself since philosophy's beginning AS the Grund (ἀρχή, αἴτιον, principium). Because: From the Greek inception, the Sein of beings has appeared as Grund — that from which beings are knowable, treatable, workable. Heidegger lists five forms of Grund: ontic causation of the actual, transcendental enabling of objectivity, dialectical mediation of absolute spirit, historical production process, value-positing will to power. All of these are the same metaphysical structure under different names. Against: Histories that take metaphysics as accidentally onto-theological. Heidegger's claim is stronger: metaphysics is necessarily grounding-representation; even Marx and Nietzsche instantiate this architectonic.
Claim: The "end" of philosophy is its Vollendung — Versammlung in die äußerste Möglichkeit (gathering into outermost possibility), not perfection or cessation. Because: We have no measure to compare philosophical epochs (Plato is not less perfect than Parmenides; Hegel not more perfect than Kant; "jede Epoche der Philosophie hat ihre eigene Notwendigkeit"). The old meaning of Ende = Ort (place); end-as-Vollendung means Versammlung. Marginal note: "Das Epochale ist aber nicht das Zeitgemäße sondern das Unzeitgemäße für die Epoche." Against: The standard senses of "end" as Aufhören, Verfall, Unvermögen. Heidegger's reframing requires precisely this anti-pejorative move; otherwise the essay collapses into a declension narrative.
Claim: Metaphysics is Platonism. Nietzsche's umgekehrter Platonismus and Marx's Umkehrung der Metaphysik reach the äußerste Möglichkeit of philosophy. Philosophy has thereby entered its end. Because: Plato's thought remains in abgewandelten Gestalten maßgebend through philosophy's whole history; die Metaphysik ist Platonismus. Reversal does not exit metaphysics — it instantiates the limit of inversion. Subsequent philosophical thinking reaches only epigonale Renaissancen und deren Spielarten. Against: Readings that treat Marx's materialist inversion or Nietzsche's transvaluation as overcoming metaphysics. They preserve the Platonic structure (true world / apparent world) at the moment of inverting valuation.
Claim: Philosophy's end has a second feature: the dispersal of philosophy into independent sciences. The sciences detaching from philosophy IS PART OF Vollendung, not its disappearance. Because: Today: psychology, sociology, anthropology (as cultural anthropology), logic (as logistics and semantics) have become independent. What looks like Auflösung der Philosophie is "in Wahrheit gerade ihre Vollendung." The sciences inherit philosophy's task of regional ontologies but reduce ontological sense to kybernetische Funktion. Against: Reading the rise of the sciences as the defeat of philosophy by empirical inquiry. Heidegger denies the antagonism: the sciences are philosophy in its dispersed completion.
Claim: Kybernetik is the new Grundwissenschaft — the fundamental science — that determines and steers the dispersed sciences in their completion. Because: Cybernetics corresponds to the Bestimmung des Menschen als des handelnd-gesellschaftlichen Wesens (man as acting-social being). The fundamental Zug of scientificity in this age is kybernetisch, d. h. technisch. Cybernetics transforms language into Austausch von Nachrichten and arts into gesteuert-steuernde Instrumente der Information. The need to ask about modern technology dies as technology stamps and steers the world-whole. Against: Treating cybernetics as one science among others. Heidegger raises it to Grundwissenschaft-status: it is the form science takes when philosophy has fully dissolved into it. Theorie becomes "Supposition der Kategorien, denen nur eine kybernetische Funktion zugestanden, aber jeder ontologische Sinn abgesprochen wird." This is structurally continuous with machenschaft / Ge-stell in Heidegger's earlier writings.
Claim: End of philosophy = Beginn der im abendländisch-europäischen Denken gegründeten Weltzivilisation. Whether the world-civilization stabilizes through "fortgesetzten Wechsel des immer Neuesten" or is destroyed suddenly remains undecided. Because: Sciences interpret all categories instrumentally as Arbeitshypothesen; truth = Effizienz dieser Effekte. Sciences still speak about the Being of beings — but they don't say it. They can deny their philosophical origin but never throw it off. Against: Reading "world civilization" as a hopeful term. For Heidegger, world civilization is the planetary scope of the metaphysical Ge-stell in its scientific-technical realization.
Claim: Beyond the last possibility of philosophy (its dissolution into technicized sciences), there is a first possibility — one philosophical thinking had to start from but could never itself experience and take up as philosophy. A task remains for thinking that is neither metaphysics nor science, that has only preparatory, not founding character. Because: This task closed itself off from philosophy at its beginning, even by its beginning, and has consistently withdrawn since. Such thinking remains geringer als die Philosophie (lesser than philosophy), without effect in the technical-scientific public sphere of the industrial age. Its work: Erweckung einer Bereitschaft des Menschen für eine Möglichkeit, deren Aufriß dunkel, deren Kommen ungewiß bleibt. Against: The objection of Überheblichkeit (presumption) that this thinking sets itself above the great philosophers. Heidegger preempts: the suspect is ungrounded; the new thinking is behind, not above, philosophy.
Claim: Philosophy has called thinking explicitly "zur Sache selbst" twice in modernity — Hegel's 1807 Phenomenology Preface and Husserl's 1910/11 "Philosophie als strenge Wissenschaft." In both cases, what counts as the Sache is presupposed: subjectivity. The two methods (speculative dialectic, intentional intuition) differ as much as possible; the Sache is identical. Because: Hegel: in the Darstellung of the matter, theme and method become identical (= der Gedanke); but the matter is historically determined as Subjektivität (since Descartes' ego cogito as ausgezeichnetes subiectum). Husserl: the Prinzip aller Prinzipien (Ideen 1913 §24) is methodological and demands absolute Subjektivität as Sache; transcendental subjectivity = "das einzige absolute Seiende" (FTL 1929 p. 240). For Husserl as for Hegel, the Sache as such is not the contested point; only its presentation is. Against: Reading Hegel and Husserl as competitors over the matter of philosophy. They share the matter and differ only on method. The Vorrang der Methode in Husserl, and the identity of method-with-matter in Hegel, both presuppose what is to be at issue.
Claim: What remains unthought in both Hegel's and Husserl's call "zur Sache selbst" is the Lichtung — the prior open free realm that grants any Scheinen (showing). Because: Speculative dialectic: the matter comes to shine forth from itself for itself; such shining happens in a Helle; the Helle rests in something Offenes, Freies; the Helle plays in the open and streitet with darkness. Husserl: Evidentia (Cicero's Latinization of ἐνάργεια) presupposes that something shines from itself, which can shine only when openness is granted; the light-ray crosses but does not create the Lichtung. Auch Abwesendes kann nicht als solches sein, es sei denn als anwesend im Freien der Lichtung. Against: The philosophical light of reason (lumen naturale, Licht der Vernunft) — philosophy speaks of it but achtet nicht auf die Lichtung des Seins. Plato's recognition of light's role in ἰδέα is correct but doesn't reach the Lichtung.
Claim: Lichtung is not Licht (brightness). The substantive Lichtung (loan-translation of French clairière, formed on older Waldung, Feldung) goes back to the verb lichten (to free, make open). Adjective licht in this sense = leicht (light/free), distinct from licht meaning hell (bright). Because: Although light can fall into the Lichtung, light never first creates the Lichtung. The Lichtung is open not only for brightness/darkness but also for Hall und Verhallen, Tönen und Verklingen — for everything An- und Abwesende. Against: Treating Heidegger's Lichtung as a metaphor of light. The philological work disarms this misreading: light is not the matter; the open is. Marginal speculation (13): "vielleicht aus vil-lichte / viel-freies, viel-mögliches" — Lichtung as much-free, much-possible.
Claim: Lichtung is in fact named at philosophy's Beginn — in Parmenides's "thinking-poem" (Fragment I, 28ff.) — but as ἀ-λήθεια (Unverborgenheit), not yet thought as such. Aletheia is the gut-gerundete, the ruhige Herz, Ort der Stille that gathers what first grants Unverborgenheit. Das ist die Lichtung des Offenen. Because: Parmenides names the nichtzitterndes Herz der Unverborgenheit; in this Drehung of the pure circle there's no possibility of Verdrehen, Verstellen, Verschließen. What Aletheia first grants — before all else — is the Weg on which thinking pursues das eine and perceives it: ὅπως ἔστιν ... εἶναι (that there presences presencing). Against: Reading Parmenides as merely an early thinker of Wahrheit-Richtigkeit; reading Heidegger's translation of Aletheia as etymological fancy. Heidegger insists: "der Sache wegen, nicht der Etymologie zuliebe."
Claim (THE SELF-CORRECTION): Aletheia as Lichtung is not Wahrheit. To translate it as Wahrheit — especially in the post-SuZ register — verdeckt den Sinn of what the Greeks meant. Heidegger explicitly cites his own Sein und Zeit (1927) p. 219 as an example of how der Versuch, eine Sache zu denken, zeitweise wegirren kann von dem, was ein entscheidender Einblick schon gezeigt hat — how the attempt to think a matter can temporarily stray from what a decisive insight has already shown. Because: If one understands Wahrheit as Übereinstimmung (correspondence) of knowledge with beings, OR as Gewißheit des Wissens vom Sein, then Aletheia darf nicht gleichgesetzt werden with Wahrheit. Aletheia grants the possibility of truth; truth itself, like Sein and Denken, can only be what it is im Element der Lichtung. Against: His own earlier identification (in SuZ §44 and through 1930) of Aletheia with Wahrheit, and the consequent doctrine of "Wesenswandel der Wahrheit" (essential change in truth) from Greek Unverborgenheit to Roman adaequatio. The 1964 essay says: there was no such Wesenswandel. Aletheia als solche was never thought as such by philosophy in the first place; what it grants (correctness, reliability) was experienced sogleich (immediately) and only as ὀρθότης. The Wesenswandel thesis is "nicht haltbar" (untenable).
Claim: Lethe (Verbergung, self-concealment) belongs to A-letheia not as a mere addition or like shadow to light, but als das Herz der 'Αλήθεια. In this self-concealing of the Lichtung of Anwesenheit there holds sway a Bergen und Verwahren (sheltering and keeping safe), from which alone Unverborgenheit is granted and Anwesendes can appear. Because: Why does Aletheia for natural experience appear only as Richtigkeit? Heidegger's diagnosis: man's ekstatischer Aufenthalt in the openness of presence is turned only to the present and to the existing presentation; Anwesenheit als solche and erst recht the Lichtung that grants it remain unattended. Erfahren und gedacht wird nur, was die Aletheia als Lichtung gewährt, nicht was sie als solche ist. This stays verborgen — and the question is whether this is by chance, by negligence, or because Sich-verbergen, Verborgenheit, Λήθη belongs structurally to A-letheia. Against: Reading the forgottenness of Being as a contingent mistake of philosophy that could be reversed by intellectual effort. Heidegger here takes the deeper move: Verbergung is not negligence but the heart of Aletheia, a structural self-concealment without which Unverborgenheit could not be granted.
Claim: The objection of grundlose Mystik, schlechte Mythologie, verderblicher Irrationalismus is bodenlos so long as Ratio remains questionable. Maybe there is a thinking outside the rational/irrational distinction, more sober than scientific technics, abseits, ohne Effekt, gleichwohl von eigener Notwendigkeit. Because: Technical-scientific Rationalisierung dominates the present age and justifies itself daily by overwhelming Effekt. But effect tells nothing about what first grants the possibility of the rational and irrational. The Effekt proves only the Richtigkeit of technical-scientific Rationalisierung. Does the Offenbarkeit of what is exhaust itself in the Beweisbar? Probably the Fortriß of cybernetics is itself äußerst irrational. Wir alle bedürfen noch einer Erziehung zum Denken. Aristotle (Met IV 1006a sqq.) on ἀπαιδευσία: "to have no eye for what needs proof and what doesn't." Against: The technical-scientific age's automatic identification of "thinking" with rationality, where rationality means provability + cybernetic effectiveness. Heidegger's counter-move: rationality and irrationality are both effects of an unthought ground; questioning that ground is not irrationalism but a more radical sobriety.
Claim: The new Titel der Aufgabe des Denkens — replacing "Sein und Zeit" — would be Lichtung und Anwesenheit. The task of thinking would be the Preisgabe (giving-over) of previous thinking to die Bestimmung der Sache des Denkens. Because: The introductory paragraph anticipated: "der Titel der Aufgabe »Sein und Zeit« wird sich ändern." Marginal (27) reframes the SuZ-Seinsfrage as "der verkürzte Titel für die Frage nach der Herkunft der ontologischen Differenz." The origin of the ontological difference is what Aletheia-as-Lichtung names. The closing question — Woher aber und wie gibt es die Lichtung? Was spricht im Es gibt? — leaves the renamed task open. Against: Reading the SuZ-vocabulary as still adequate. Heidegger here enacts the title-substitution and names it.

Argumentative Movement

The essay does not move by premise-conclusion argument; it moves by a double diagnostic with a renamed task at its junction. Section 1 is negative-genealogical: how has philosophy ended? — by completing as scientific-cybernetic Weltzivilisation. Section 2 is positive-preparatory: what task remains? — attention to the Lichtung-as-Aletheia that philosophy has not thought, including a self-corrective moment (the Aletheia-Wahrheit retraction). The two sections share the figure of the Versammlung in die äußerste Möglichkeit: in Section 1, the scientific-cybernetic age gathers Western thinking into its outermost possibility (the dispersal-as-Vollendung); in Section 2, Parmenides's gut-gerundete Aletheia gathers (in the place of stillness) what first grants Unverborgenheit. The structural identity of the two gatherings is the compositional achievement of the essay: philosophy's äußerste Möglichkeit and Aletheia's ruhiges Herz are both Versammlungs-Orte, but the first is the gathering-as-completion and the second is the gathering-as-origin.

The marginalia from the Handexemplar perform a third diagnostic visible only in the GA edition: at almost every key point of the body, a marginal reframes, deepens, or cross-references. The most consequential is marginal (27) at p. 87, which reframes the SuZ-Seinsfrage itself; the marginal (21) at p. 84 explicitly remarks "alles Folgende zu »Lichtung« Gesagte gehört in den anderen Anfang"; the marginal (15) glosses Sein in body p. 82 as "genauer: von der Lichtung des Austrags, der selbst lichtend-nichtend hervor-bringt." These marginalia are not glosses on the body but a separate later reading that moves further than the published essay.

The closing rhetorical structure is a triple question: "Lautet dann der Titel ... Lichtung und Anwesenheit?" — "Woher aber und wie gibt es die Lichtung? Was spricht im Es gibt?" — and the closing declarative: "Die Aufgabe des Denkens wäre dann die Preisgabe des bisherigen Denkens an die Bestimmung der Sache des Denkens." The questions are unanswered in the published essay; the marginal cross-references (29, 30) point to Akademie München and the Gadamer-Geschenk Bestimmung der Sache des Denkens (GA 80) as the further work.

Key Findings

Vollendung now extends from the Nietzsche-doctrine of *Nietzsche I* (1936-39) to a cybernetic-scientific specification: philosophy ends in cybernetics + world civilization. This is the public, late-Heidegger articulation of the Endzeit-thesis.
Lichtung receives its locus classicus in this essay. The philological argument (Lichtung from lichten, distinct from licht-as-bright) is more concentrated here than anywhere else in the published corpus.
The 1927 SuZ identification of Aletheia with Wahrheit is publicly retracted via direct citation of SuZ p. 219 in the footnote at p. 87.
The Wesenswandel-der-Wahrheit thesis (Greek Unverborgenheit → Roman adaequatio) is declared "nicht haltbar." Aletheia was never thought als solche; it was experienced sogleich and only as ὀρθότης.
Lethe is named als das Herz der 'Αλήθεια. Verbergung is structural, not contingent.
The SuZ-Seinsfrage is reframed by the Handexemplar marginal (27) at p. 87 as "der verkürzte Titel für die Frage nach der Herkunft der ontologischen Differenz." This is the most concentrated post-Kehre re-anchoring of the SuZ-task in Heidegger's published corpus.
The new title of the task: Lichtung und Anwesenheit (replacing Sein und Zeit).
The mode of post-philosophical thinking: Preisgabe (giving-over), vorbereitend (preparatory), abseits (apart), ohne Effekt (effect-less), gleichwohl von eigener Notwendigkeit.

Methodology

Heidegger's mode of work in this essay is what he elsewhere names auseinandersetzung applied (a) to Hegel and Husserl as the carriers of "zur Sache selbst", (b) to Parmenides as the first thinker of Aletheia, and (c) reflexively to himself as the author of Sein und Zeit. The procedure: read the call-to-the-Sache against the unthought of the Sache; the unthought is what makes the Sache visible from a position not shared by the call's issuers. The same procedure that MP redeploys (after Heidegger) in "The Philosopher and his Shadow" — read Husserl's Sache against Husserl's unthought — Heidegger here turns also on himself: the SuZ identification of Aletheia with Wahrheit was a Wegirren (straying), now visible from the position of the 1964 reframing.

The essay belongs to Heidegger's immanente Kritik of Sein und Zeit "since 1930" (introductory paragraph). Cross-references to Vom Wesen der Wahrheit (1930/1950, GA 9), Was heißt Denken? (1951/52, GA 8), Der Ursprung des Kunstwerkes (1935ff, GA 5), Hegel und die Griechen (1960, GA 9), Unterwegs zur Sprache (1959, GA 12), and the Athens 1967 lecture Die Herkunft der Kunst und die Bestimmung des Denkens (GA 80) anchor the essay within a 35-year sustained immanent-critical project. The Bestimmung der Sache des Denkens manuscript (Gadamer's 70th-birthday gift, 1970, GA 80) is signaled as the matter underneath this 1964 essay — the GA 14 footnote explicitly treats this 1964 essay as the public Vortragsfassung whose deeper version remained in the Gadamer-Privatseminar manuscript.

Concepts Developed

Concepts where this source does primary work:

lichtung — locus classicus. The philological argument and the function-as-Element of presence reach their public form here.
aletheia — the famous self-correction (Aletheia ≠ Wahrheit) and the gut-gerundete-as-Ort-der-Stille identification. Source-primary on the wiki.
lethe-verbergung — als das Herz der 'Αλήθεια. The 1964 formulation of structural Verbergung is the most concentrated.
end-of-philosophy — Vollendung-cum-Versammlung; sciences-as-Vollendung; cybernetics; Weltzivilisation.
task-of-thinking — preparatory, non-founding, effect-less; Preisgabe; Lichtung und Anwesenheit.
kybernetik-as-grundwissenschaft — the Grundwissenschaft specification.
vollendung-der-metaphysik — extends the wiki's existing page (Nietzsche-doctrine, 1936-39) with the 1964 cybernetic-scientific specification.
machenschaft — extends the wiki's existing page with the explicit cybernetics-as-late-Heidegger-name attestation.
unthought — extends the wiki's existing (MP-centric) page with the primary Heidegger 1964 text on the unthought of philosophy as Aletheia-Lichtung.

Concepts Referenced

Concepts the source touches on but doesn't develop:

ontological-difference — referenced in marginal (27) as the Herkunft of which is the renamed Seinsfrage. Cross-corpus continuity, not new development.
seinsgeschichte — implicit throughout but not the topic; the historical sequence Plato → Aristotle → Descartes → Hegel → Nietzsche → cybernetics is the operative Geschichte.
ereignis — Marginal (23): "»walten« bestimmt aus er-eigenen." A single anchoring, but indicates the Ereignis-thematic underpins the 1964 waltenden Lichtung.
auseinandersetzung — operative mode but not thematized.
leitfrage-grundfrage — the essay's distinction between philosophy as metaphysics (within the Leitfrage) and the task of thinking (toward the Grundfrage / Aletheia) belongs to this architectonic but isn't named here.

Terminology

This source is a German text; key terms in their philosophical grammar:

German	English (standard renderings)	Heidegger's gloss / location
Lichtung	clearing, lighting, opening	"Wir nennen diese Offenheit, die ein mögliches Scheinenlassen und Zeigen gewährt, die Lichtung." (p. 80). Distinct from Licht (brightness); related to leicht (light/free), not to hell.
Aletheia / Unverborgenheit	unconcealment, disclosure	"die gutgerundete... der Ort der Stille, der in sich versammelt, was erst Unverborgenheit gewährt" (p. 83). Heidegger's chosen translation: Unverborgenheit, not Wahrheit.
Lethe / Verbergung	concealment, self-concealing	"das Sichverbergen, die Verborgenheit, die Λήθη... als das Herz der 'Αλήθεια" (p. 88).
Vollendung	completion, consummation	"Versammlung in die äußerste Möglichkeit" (p. 71). NOT perfection.
Anwesenheit	presence, presencing	The mode in which the Sein of beings appears as Grund.
Sache	matter, thing-at-issue	Plato's τὸ πρᾶγμα αὐτό; Streitfall (p. 75). Not "thing" in the ontic sense.
Bestimmung / Be-Stimmung	determination, destiny / de-termination from a voice	Marginal (9): "Be-Stimmung — aus der Stimme der Stille des nichtenden Nichts."
Preisgabe	giving-over, surrender, exposure	Closing: "Die Aufgabe des Denkens wäre dann die Preisgabe des bisherigen Denkens an die Bestimmung der Sache des Denkens" (p. 90).
Kybernetik	cybernetics	The new Grundwissenschaft of the completed-philosophy age (p. 72).
Weltzivilisation	world civilization	"Beginn der im abendländisch-europäischen Denken gegründeten Weltzivilisation" (p. 73).
Wegirren	to stray, to err on the way	The footnote's name for what SuZ p. 219 did when translating Aletheia as Wahrheit (p. 87 footnote).
Bodenlos	groundless, abyssal	Used twice (p. 85, p. 89) to characterize claims that lack the prior Aletheia-experience.
Ort der Stille	place of stillness	Heidegger's 1964 name for the ruhige Herz of Aletheia (p. 83).

Key Passages

"Philosophie ist Metaphysik. Diese denkt das Seiende im Ganzen – die Welt, den Menschen, Gott – hinsichtlich des Seins, hinsichtlich der Zusammengehörigkeit des Seienden im Sein." (GA 14 p. 70) — anchors Argument 1 (philosophy = metaphysics as grounding-representation of beings as such).

"Die alte Bedeutung unseres Wortes »Ende« bedeutet dasselbe wie Ort: »von einem Ende zum anderen« heißt: von einem Ort zum anderen. Das Ende der Philosophie ist der Ort, dasjenige, worin sich das Ganze ihrer Geschichte in seine äußerste Möglichkeit versammelt. Ende als Vollendung meint diese Versammlung." (GA 14 p. 71) — anchors Argument 2 (the philological re-grounding of Ende).

"Mit der Umkehrung der Metaphysik, die bereits durch Karl Marx vollzogen wird, ist die äußerste Möglichkeit der Philosophie erreicht. Sie ist in ihr Ende eingegangen." (GA 14 p. 71) — anchors Argument 3 (Marx-Nietzsche as Vollendung-of-Platonism).

"Es bedarf keiner Prophetie, um zu erkennen, daß die sich einrichtenden Wissenschaften alsbald von der neuen Grundwissenschaft bestimmt und gesteuert werden, die Kybernetik heißt." (GA 14 p. 72) — anchors Argument 5 (cybernetics as Grundwissenschaft).

"Das Ende der Philosophie zeigt sich als der Triumph der steuerbaren Einrichtung einer wissenschaftlich-technischen Welt und der dieser Welt gemäßen Gesellschaftsordnung. Ende der Philosophie heißt: Beginn der im abendländisch-europäischen Denken gegründeten Weltzivilisation." (GA 14 p. 73) — anchors Argument 6 (end of philosophy = world civilization).

"Gering aber bleibt das vermutete Denken vor allem deshalb, weil seine Aufgabe nur einen vorbereitenden, keinen stiftenden Charakter hat. Sie begnügt sich mit der Erweckung einer Bereitschaft des Menschen für eine Möglichkeit, deren Aufriß dunkel, deren Kommen ungewiß bleibt." (GA 14 p. 74) — anchors Argument 7 (preparatory thinking).

"Wir nennen diese Offenheit, die ein mögliches Scheinenlassen und Zeigen gewährt, die Lichtung." (GA 14 p. 80) — anchors Argument 9 (the Lichtung definition).

"Aber niemals schafft das Licht erst die Lichtung, sondern jenes, das Licht, setzt diese, die Lichtung, voraus. Indes ist die Lichtung, das Offene, nicht nur frei für Helle und Dunkel, sondern auch für den Hall und das Verhallen, für das Tönen und das Verklingen. Die Lichtung ist das Offene für alles An- und Abwesende." (GA 14 p. 80) — anchors Argument 10 (the anti-light-metaphor passage).

"Alles Denken der Philosophie, das ausdrücklich oder nicht ausdrücklich dem Ruf »zur Sache selbst« folgt, ist auf seinem Gang, mit seiner Methode, schon in das Freie der Lichtung eingelassen. Von der Lichtung jedoch weiß die Philosophie nichts. Die Philosophie spricht zwar vom Licht der Vernunft, aber achtet nicht auf die Lichtung des Seins." (GA 14 p. 82) — anchors Argument 9 (philosophy operates in the Lichtung but knows nothing of it).

"Die 'Αλήθεια, die Unverborgenheit, müssen wir als die Lichtung denken, die Sein und Denken, deren Anwesen zu und für einander erst gewährt." (GA 14 p. 84) — anchors Argument 12 (Aletheia-as-Lichtung identification).

"Vielmehr gewährt die 'Αλήθεια, die Unverborgenheit als Lichtung gedacht, erst die Möglichkeit von Wahrheit. Denn die Wahrheit kann selbst ebenso wie Sein und Denken nur im Element der Lichtung das sein, was sie ist." (GA 14 p. 86) — anchors Argument 13 (truth grounded in Aletheia).

"Darum war es nicht sachgemäß und demzufolge irreführend, die 'Αλήθεια im Sinne der Lichtung Wahrheit zu nennen.* / Wie der Versuch, eine Sache zu denken, zeitweise wegirren kann von dem, was ein entscheidender Einblick schon gezeigt hat, wird durch eine Stelle aus »Sein und Zeit« (1927) S. 219 belegt: »Die Übersetzung (des Wortes ἀλήθεια) durch das Wort ›Wahrheit‹ und erst recht die theoretischen Begriffsbestimmungen dieses Ausdrucks (Wahrheit) verdecken den Sinn dessen, was die Griechen als vorphilosophisches Verständnis dem terminologischen Gebrauch von ἀλήθεια ›selbstverständlich‹ zugrunde legten«. [GA Bd. 2, S. 291]" (GA 14 p. 87 + footnote) — anchors Argument 13 (the famous self-correction; cited self-reference to SuZ p. 219).

"Geschieht es, weil das Sichverbergen, die Verborgenheit, die Λήθη zur 'Α-λήθεια gehört, nicht als eine bloße Zugabe, nicht so wie der Schatten zum Licht, sondern als das Herz der 'Αλήθεια? Und waltet in diesem Sichverbergen der Lichtung der Anwesenheit sogar noch ein Bergen und Verwahren, aus dem erst Unverborgenheit gewährt werden und so Anwesendes in seiner Anwesenheit erscheinen kann?" (GA 14 p. 88) — anchors Argument 14 (Lethe as heart of Aletheia).

"Vielleicht gibt es ein Denken außerhalb der Unterscheidung von rational und irrational, nüchterner noch als die wissenschaftliche Technik, nüchterner und darum abseits, ohne Effekt und gleichwohl von eigener Notwendigkeit." (GA 14 p. 89) — anchors Argument 14 (post-rational sobriety).

"Lautet dann der Titel der Aufgabe des Denkens statt »Sein und Zeit«: Lichtung und Anwesenheit?" (GA 14 p. 90) — anchors Argument 15 (the title-substitution).

"Die Aufgabe des Denkens wäre dann die Preisgabe des bisherigen Denkens an die Bestimmung der Sache des Denkens." (GA 14 p. 90, closing) — anchors Argument 15 (the closing formula).

Handexemplar Marginalia (illustrative selection)

Marginal at p. 70: "Was heißt: ins Ende eingehen? Beginn eines langwierigen Ver-endens" — re-frames philosophy's Ende as a long-drawn-out Verendung, a bridge between Vollendung-as-perfection and Vollendung-as-Versammlung.

Marginal (4) at "Epoche": "Das Epochale ist aber nicht das Zeitgemäße sondern das Unzeitgemäße für die Epoche."

Marginal (15) at body-Sein, p. 82: "genauer: von der Lichtung des Austrags, der selbst lichtend-nichtend hervor-bringt / Anwesendes in seine je eigentümliche Anwesenheit." — Heidegger's later self-correction: the Lichtung is not just of Sein but of Austrag (the difference-bearing) which itself lichtend-nichtend hervor-bringt (clearing-nihilating brings-forth) presences into their own.

Marginal (21) at p. 84: "alles Folgende zu »Lichtung« Gesagte gehört in den anderen Anfang – den An-Fang erfahren zwar im Echo des Parmenides – geschicklich – jedoch zuvor gedacht in der freilich noch kaum geklärten und darum auch nicht sagbaren »Seinsfrage« in Sein und Zeit." — The most concentrated marginal: everything subsequent on Lichtung "belongs in the other beginning" — the An-Fang.

Marginal (27) at p. 87: "inwiefern es die ontologische Differenz gibt und geben kann. »Seinsfrage« in Sein und Zeit der verkürzte Titel für die Frage nach der Herkunft der ontologischen Differenz." — The post-Kehre re-anchoring of the SuZ-Seinsfrage. The most consequential single marginal in the volume.

Marginal (30) at the closing title-substitution: "Anwesenheit (ontologische Differenz) und Lichtung — vgl. 88 Akademie München." — The 1964 published essay's closing question receives a further marginal correction: not only "Lichtung und Anwesenheit" but "Anwesenheit (ontologische Differenz) und Lichtung" — the parenthesis names the link.

What's Not Obvious

Three things this text shows that would not appear in a conventional summary:

The 1964 essay is in part a public retraction of Heidegger's own SuZ-doctrine of Aletheia as Wahrheit. The footnote at p. 87 cites SuZ p. 219 by direct page reference and characterizes that translation as a Wegirren — a temporary straying — from a decisive insight. This is not a quiet revision but a deliberate self-correction made in a French-published, German-republished essay sent into the international philosophical public. Most secondary literature on Heidegger's "Wahrheit als Unverborgenheit" treats the SuZ identification as durably Heideggerian; the 1964 essay says it was always at odds with the Sache. Cross-corpus: the marginal (25) cross-references Unterwegs zur Sprache (1959) p. 175 [GA 12 p. 165] as a prior site of the same insight — i.e., the correction was already underway in 1959, but the public articulation comes in 1964. Specific passage: GA 14 p. 87 footnote. Cross-page link: this revises the wiki's unthought page and any other page that mentions Heidegger's "truth as unconcealment" without distinguishing pre-1964 and post-1964 registers.
The cybernetic-Vollendung argument is more pointed than commonly read. Most readers of Heidegger receive the technology-thesis through Die Frage nach der Technik (1953); the 1964 essay sharpens it: cybernetics is not a region of Technik but the Grundwissenschaft of the completed-philosophy age, the form science takes when philosophy has fully dissolved into it. Theorie is now defined as "Supposition der Kategorien, denen nur eine kybernetische Funktion zugestanden, aber jeder ontologische Sinn abgesprochen wird." This means the cybernetic operation on language (transforming language into "Austausch von Nachrichten") and the cybernetic operation on art (turning the arts into "gesteuert-steuernde Instrumente der Information") are not byproducts of technology but the internal logic of philosophy's end-state. Cross-page link to machenschaft: cybernetics is the public 1964 name for the same phenomenon NII (1939-46) called Machenschaft and Wille zum Willen.
The published essay's closing question is itself revised in the marginalia: the body asks "Lichtung und Anwesenheit?" (p. 90); the marginal (30) writes "Anwesenheit (ontologische Differenz) und Lichtung" — reordering and parenthesizing. The parenthesis "(ontologische Differenz)" is the marginal's compressed identification of Anwesenheit-as-such with the ontological difference itself. This means the 1964-marginalized form of the renamed task is not "Sein und Zeit → Lichtung und Anwesenheit" simpliciter but "Sein und Zeit → Anwesenheit (= ontological difference) and Lichtung." The published essay is therefore not the final form of its own central thesis; the Akademie München and Bestimmung der Sache des Denkens manuscripts (GA 80) carry the further form. Cross-page link: this is consequential for ontological-difference; the wiki page should record the post-1964 marginal identification of Anwesenheit-as-such with the ontological difference itself, mediated by the Lichtung as the difference's Herkunft.

Critique / Limitations

The unicity of the Lichtung is assumed, not argued. Heidegger names die Lichtung as if its identity across speculative dialectic, intuitive evidence, Plato's ἰδέα, and Parmenides's Aletheia were given. Critics like Derrida (who would multiply the différance of clearings) or those like Knight (who argues that pre-Socratic physis kryptesthai philei should differ from Plato's idea-light) have a foothold here.
The German philological warrant is uncertain. The whole anti-light-metaphor argument turns on (a) Lichtung as a loan-translation of French clairière and (b) the verb lichten being formed on adjective licht meaning leicht, distinct from licht meaning hell. Marginal (13) concedes "vielleicht aus vil-lichte" — perhaps from vil-lichte (very-light/very-free) — as a speculation. If the philology fails, the positive thesis loses its grip on the German word.
The retraction-of-the-Wesenswandel-thesis disturbs Heidegger's own earlier corpus. SuZ §44, Vom Wesen der Wahrheit (1930/1949), and Vom Wesen des Grundes all carry the Wesenswandel-der-Wahrheit doctrine in some form. The 1964 essay says the doctrine is "nicht haltbar." This is internally consequential and Heidegger does not work through the consequences. The wiki should treat the 1964 retraction as the latest published Heidegger position on the matter but also note that Heidegger's prior corpus is not consistently revised.
The "preparatory thinking" lacks operational specification. What does it mean to "awaken a readiness" for an undetermined possibility? Heidegger explicitly refuses any positive content (the thinking is "ohne Effekt," "abseits"). This is consonant with his project but leaves the post-philosophical task at the limit of articulability. Critics of the late Heidegger (including MP per martin-heidegger entity page §"Critical Distance") read this as a danger of "leading philosophy into silence."
Hegel and Husserl are read in collapsed form. Heidegger's claim that they share a Sache (subjectivity) and differ only in method is the working hypothesis of the 1964 essay; a fuller Auseinandersetzung would distinguish Hegel's Subjectivity (as Spirit reaching itself in its other) from Husserl's transcendental subjectivity (as constituting consciousness). The 1964 essay assimilates them where a more careful reading would distinguish.
The cybernetic claim has aged unevenly. Heidegger's prediction that "the arts become gesteuert-steuernde Instrumente der Information" is partly vindicated by the rise of generative-AI media; but his claim that "the need to ask about modern technology dies as technology stamps and steers the world-whole" is more contestable in 2026 than in 1964. The wiki should record the philosophical content of the cybernetic-Vollendung thesis without binding it to Heidegger's specific 1964 sociological-cultural prediction.

WdL Anchoring: Heidegger's Hegel-Engagement Newly Direct (Added 2026-05-21 — WdL three-volume ingest)

The 2026-05-21 ingest of *Wissenschaft der Logik* GW 12 enables direct philological anchoring of Heidegger's 1964 engagement with Hegel that previously rested only on the Phenomenology Vorrede. Heidegger cites the Logic explicitly at GA 14 p. 86 ("die Wissenschaft der Logik") for his Wahrheit-als-Gewißheit diagnostic; with GW 12 now ingested, the wiki can trace the specific Hegelian passages Heidegger's reading depends on.

Three new anchorings:

Absolute Idee as Subjektivität's terminus. Heidegger reads Hegel's "Sache des Denkens" as Subjektivität (Core Argument 8 above: "the matter is historically determined as Subjektivität (since Descartes' ego cogito)"). The WdL terminus is now anchorable directly: the absolute Idea at GW 12 pp. 236–253 is Hegel's articulation of subjectivity-completing-itself-as-objectivity. Heidegger's "the Sache is Subjektivität" reading is the Vollendung-of-Metaphysics diagnosis applied to the Logic's terminus: the absolute Idea is the place at which Subjektivität reaches its categorial completion — exactly what Heidegger identifies as Hegel's Vollendung der Metaphysik moment.
Freie Entlassung as Hegel's own anticipation of "end of philosophy"? GW 12 pp. 252–253 contains a structural figure Heidegger 1964 does not engage: freie Entlassung (free release into Nature) is the Logic's closure — the absolute Idea releases Nature freely from itself, ending the Logic-as-philosophy. The structural question: is freie Entlassung Hegel's own anticipation of philosophy's Ende (closure of philosophy-as-Logic, transition to Realphilosophie)? If so, the relation between Heidegger's Vollendung der Metaphysik and Hegel's freie Entlassung may not be opposition (Heidegger ending Hegel) but cousinhood (Hegel having articulated his own closure-mechanism, which Heidegger reads under different vocabulary). Per claims#freie-entlassung-as-non-transition (live claim, 2026-05-21): freie Entlassung is not an Aufheben — it is a non-transition; the Logic releases Nature without canceling itself. Whether this is structurally cousin to Heidegger's "task of thinking" (preparatory, non-founding, without effect) is a Phase 8 candidate question.
Substance-becomes-subject as 1807 anchor, Concept-as-self-mediation as 1816 anchor. Heidegger's 1964 cites the 1807 Phenomenology Vorrede (Hoffmeister edition p. 19; body p. 76 of the 1964 essay). The 1807 Preface articulates "substance becoming subject" (PhG §17). The 1816 Wissenschaft der Logik articulates the same operation in Logic-form as the Concept's self-mediation: the Concept is "die Wahrheit der Nothwendigkeit" — freedom as the truth of necessity. The 1816 articulation is what the 1807 Preface programmatically announces; the 1816 Begriff-volume completes the program. Heidegger reads both as Vollendung-of-Subjektivität moments.

Cross-reference for the wiki: this anchoring strengthens claims#hegel-798-anchors-heidegger-1964-aletheia-diagnostic (live, 2026-05-19) — the Phenomenology §798's "truth has the shape of certainty" is now coordinate with the GW 12 absolute-Idea Subjektivität-completion. Both serve as anchor-points for Heidegger's diagnostic that Hegel operates within Wahrheit-als-Gewißheit, not Aletheia-as-Lichtung.

Connections

is the locus classicus of lichtung — the only published Heidegger essay where Lichtung is given an explicit philological-functional definition and the anti-light-metaphor argument is fully unfolded.
publicly retracts the SuZ-translation Aletheia → Wahrheit — see aletheia §"The 1964 Self-Correction" and the footnote at GA 14 p. 87.
names lethe-verbergung als das Herz der 'Αλήθεια — the most concentrated formulation of Heidegger's structural-Verbergung doctrine.
extends vollendung-der-metaphysik from the 1936-39 Nietzsche-doctrine to the cybernetic-scientific specification.
names kybernetik-as-grundwissenschaft — cybernetics as the Grundwissenschaft of the completed-philosophy age.
is structurally continuous with machenschaft — the 1964 Kybernetik is the public-articulated form of Machenschaft-as-genealogical-endpoint.
reframes the SuZ-Seinsfrage as the question of the Herkunft der ontologischen Differenz — the post-Kehre re-anchoring (Handexemplar marginal 27).
enacts an immanente Kritik of Sein und Zeit (1927) (cited via SuZ p. 219 in the footnote) — the late form of Heidegger's reflexive method.
applies unthought-as-method to the call "zur Sache selbst" of Hegel (1807) and Husserl (1910/11). The same procedure MP redeploys in Signs (1959), but here turned reflexively on Heidegger himself.
is now directly anchorable in Hegel's *Wissenschaft der Logik* GW 12 — Heidegger's Wahrheit-als-Gewißheit diagnostic cites the Logic at GA 14 p. 86; the absolute Idea (GW 12 pp. 236–253) is the categorial form of Subjektivität that Heidegger identifies as the matter of Hegel's "zur Sache selbst." Freie Entlassung (GW 12 pp. 252–253) is Hegel's own closure-mechanism — a structural cousin question to Heidegger's "end of philosophy" thesis. Added 2026-05-21 via WdL three-volume ingest.
operates within the architectonic of leitfrage-grundfrage — the task of thinking is the move toward the Grundfrage (truth/Lichtung of Being), beyond the Leitfrage of metaphysics.
is in seinsgeschichtlich continuity with seinsgeschichte — the 1964 essay enacts the present moment of the Seinsgeschichte (the Endzeit of metaphysics + dawning Weltzivilisation).
contrasts with MP's V&I register on visibility — Heidegger's Lichtung is the open for everything An- und Abwesende, including for Hall und Verhallen, Tönen und Verklingen (sound and silencing), not the visible-invisible register of MP's figuratifs. False-friend caution.
is read against by Knight 2024's aquatic-ontology critique — Knight argues that Heidegger's late thought operates within a Hesiodic Earth-Sky imaginary; the 1964 Lichtung is post-Holzwege but the cosmogonic horizon-frame remains a Knight-reading worth flagging as Open Question.
is the locus of the comparative question cybernetics-as-common-enemy-heidegger-mp — whether Heidegger's Kybernetik-als-Grundwissenschaft and MP's pensée opératoire (1960–61) target the same structural phenomenon (reduction of beings to manipulable variables) under different problem-space framings, and whether MP's appeal to embodied vision and painting offers an alternative to cybernetics that Ge-stell in its 1964 articulation forecloses.

Sources

This essay (only) — primary text. GA 14 (Klostermann 2007) pp. 67–90.

Cross-Corpus Pointers (consulted only via marginalia in this ingest)

Vorträge und Aufsätze (GA 7 p. 81) — marginal (1) cross-ref at the title.
Was heißt Denken? (GA 8) — marginal (2): das Geheiß 1951/52.
Der Ursprung des Kunstwerkes (1935ff., GA 5 pp. 36ff.; Reclam 1960 pp. 52ff.) — marginal (10).
Hegel und die Griechen (1960, GA 9 pp. 441ff.; Wegmarken pp. 270ff.) — marginal (10).
Die Herkunft der Kunst und die Bestimmung des Denkens (Athens 1967, GA 80) — marginal (10).
Vom Wesen der Wahrheit (1930/1949/1950, GA 9 pp. 177ff.) — marginal (14).
Heidegger, Nietzsche Bd. II (1961, GA 6.2 pp. 391ff.) — body cross-ref at p. 82 ("inwiefern auch in der Subjektivität stets das subiectum gedacht wird"). heidegger-1961-nietzsche-ii is a wiki source page.
Bemerkung im Lehrgedicht des Parmenides (Tabula gratulatoria März 1973 für H. E. Holthusen, GA 15 pp. 403ff.) — marginal (21).
Unterwegs zur Sprache (1959, GA 12 p. 165) — marginal (25).
Die Bestimmung der Sache des Denkens (24. Juli 1964 Gadamer-Privatseminar manuscript; Geschenk an Gadamer zum 70. Geburtstag; eventually GA 80) — marginal (8) and (29).
Akademie München (GA 80) — marginal (29) and (30).
Sein und Zeit (1927, GA 2 p. 291) — footnote at p. 87 (the self-correction).
Zeit und Sein (1962, GA 14 pp. 3-30) — same volume, immediate companion piece; the Es gibt-thematic in the closing question refers back to it.
Goethe, Italienische Reise, Neapel 26. Februar 1787 — marginal (11).
Goethe, Maximen und Reflexionen n. 993 — body p. 81: "Man suche nur nichts hinter den Phänomenen: sie selbst sind die Lehre."
Trakl, "Ein Windstoß alte Linden lichtet" (in Gesamtausgabe der Werke 1969 p. 274) — marginal (12).
Hegel, Phänomenologie des Geistes Vorrede (Hoffmeister edition p. 19) — body p. 76.
Husserl, "Philosophie als strenge Wissenschaft" (Logos vol. I, 1910/11, pp. 289ff.) — body p. 76.
Husserl, Ideen zu einer reinen Phänomenologie (1913) §24 (p. 44) — body p. 78.
Husserl, Formale und transzendentale Logik (1929) p. 240 — body p. 78.
Aristotle, Metaphysica IV (1006a sqq.) — body p. 89.
Parmenides, Fragment I, 28ff. — body p. 82-83.
Cicero, on translating ἐνάργεια as evidentia — body p. 81.
Homer, on the use of ἀληθές with verba dicendi — body p. 88.