Tractatus Logico-Philosophicus
Wittgenstein's early logical atomism — seven numbered propositions and their numbered elaborations
Tradition: Analytic philosophy / logical atomism
The world is the totality of facts, not of things — and whereof one cannot speak, thereof one must be silent
The Tractatus is one of the strangest masterpieces of analytic philosophy. Drafted while Wittgenstein served in the Austro-Hungarian army, it presents — in seven numbered theses and thousands of decimal-numbered elaborations — a picture theory of language and a logical-atomist ontology: the world is the totality of facts, facts are configurations of simple objects, meaningful propositions picture states of affairs by sharing logical form. Famously, the Tractatus undermines its own apparent assertions in its closing pages — the propositions of the book are themselves "nonsense" (unsinnig), to be discarded after they have done their work, like a ladder kicked away. Russell's introduction (which Wittgenstein hated), the Vienna Circle's engagement, and the eventual emergence of analytic philosophy as a tradition all run through this book.
Author
Editions cited
- Tractatus Logico-Philosophicus (D. F. Pears & B. F. McGuinness, Routledge, 1961, still standard)
- Tractatus Logico-Philosophicus (C. K. Ogden, with Wittgenstein's help, Routledge, 1922)
- Major Works (Wittgenstein, Harper Perennial, 2009)
School Embodiments
The Tractatus and Russell's lectures on logical atomism (also 1918) are the joint origin texts of analytic metaphysics. The picture theory and the doctrine of simples shape the entire next generation of analytic philosophy.
"The world is the totality of facts, not of things." (Tractatus 1.1)
The Vienna Circle read the Tractatus as scripture in the 1920s — Schlick, Carnap, and Waismann meeting with Wittgenstein during his Vienna years. Wittgenstein's own relation to the Circle was uneasy, but the Tractatus is the proximate philosophical cause of logical positivism.
"The right method of philosophy would be this: to say nothing except what can be said, i.e. propositions of natural science." (Tractatus 6.53)
A genuine resonance: the Tractatus's self-undermining conclusion — its own propositions are nonsense, to be transcended — has structural similarities with ancient Pyrrhonian self-cancellation.
"He must, so to speak, throw away the ladder, after he has climbed up on it." (Tractatus 6.54)
Wittgenstein's claim that the limits of language are the limits of my world (5.6) — and the corresponding treatment of the metaphysical subject as a limit rather than a thing — has been read as a transformation of Kantian transcendental philosophy. (Stenius, Hacker.)
"The limits of my language mean the limits of my world." (Tractatus 5.6)
Less an embodiment than a contemporary parallel: the Tractatus and Husserl's Logical Investigations both work on the structure of meaningful assertion. Heidegger engaged the Tractatus in the 1930s.
"There is indeed the inexpressible. This shows itself; it is the mystical." (Tractatus 6.522)
Despite its strangeness, the Tractatus' picture theory is a thoroughgoing realism: language pictures facts, facts are independent, the world has a logical structure that meaningful language shares.
"The proposition is a model of reality as we think it is." (Tractatus 4.01)
Tractatus 5.6-5.64 are the principal twentieth-century philosophical engagement with solipsism. Wittgenstein argues that "what the solipsist means is quite correct; only it cannot be said, but makes itself manifest" (5.62), and concludes that "the self of solipsism shrinks to a point without extension and there remains the reality coordinated with it" — at which point solipsism "coincides with pure realism" (5.64). The Tractatus serves as the canonical reference for solipsism in the analytic tradition without itself simply endorsing the position.
"In fact what solipsism means is quite correct, only it cannot be said, but makes itself manifest." (Tractatus 5.62) — "Solipsism, when its implications are followed out strictly, coincides with pure realism." (5.64)
Analytic-philosophical tradition.
Internal Tensions
The Tractatus's self-undermining is its single most contested feature. If 6.54 is right — its own propositions are nonsense — how can the reader have been led anywhere by them? Resolute readers (Diamond, Conant) take Wittgenstein at his word: the book is a therapeutic exercise. Standard readers (Russell, Hacker) think the book genuinely presents a metaphysics that Wittgenstein later rejected. The author-stage shift to the Investigations turns precisely on which reading is right.
I. Time
Wittgenstein presupposes a roughly Newtonian-Russellian time in which facts obtain at moments; he does not theorise time as such. The Tractatus's ontology of states of affairs consists of timeless logical structures, instantiated in the temporal world. "Just as we cannot think of spatial objects at all apart from space... so we cannot think of any object apart from the possibility of its connexion with other things" (2.0121).
Attributes
II. Space
Space (with time and colour) is one of the "forms of objects" — a necessary form of every possible state of affairs (2.0251). It is substantival in the sense that it is part of the logical scaffolding of any possible world.
Attributes
III. Matter
The simple objects are not "material" in any everyday sense; they are whatever the ultimate constituents of states of affairs turn out to be. Wittgenstein never says what they are; this gap was one of the early Wittgenstein's concessions to the Vienna Circle and one of the loci of his later self-critique.
Attributes
IV. Observer
The metaphysical subject "does not belong to the world: rather, it is a limit of the world" (5.632). Observer Number is Singular at this transcendental level — there is one subject, who is the limit of one's world — and the subject is more like a coordinate-frame than a person. Agency is passive in the strict philosophical sense: the world happens; what the subject *can* affect is its own will, which is a matter of "what is higher" and inexpressible (6.43, 6.421).
Attributes
V. Energy
Not engaged. Standard early-twentieth-century physical energetics is presupposed without discussion.
Attributes
VI. Information
The picture theory makes information substantival: meaningful propositions picture facts by shared logical form. The information is conserved in the sense that the logical structure of reality is invariant. Personal information is not preserved across death — Wittgenstein is famously laconic on personal immortality, and Tractatus 6.4311 says only that "death is not an event in life."
Attributes
Personas that cite this work
Films that reference this work
Personas with the nearest attribute fingerprint
Historical figures whose own classification on the same six-dimensional grid lands closest to this work's. Computed by attribute-agreement on coordinates both address.
Computed school proximity
The work's attribute fingerprint scored against all schools using the same quiz scorer. Useful as a sanity check on the hand-curated embodiments above.
How Tractatus Logico-Philosophicus resolves each dilemma
51 resolved positions across 4 dimensions, including 32 distinctive where the majority of schools go the other way · 6 unaligned.
Each dimension is sorted so minority positions come first. Mainstream positions are folded into an expandable list.
Time · 9 dilemmas · 3 distinctive
Persistence, the future, and the direction of becoming.
6 mainstream positions
Matter · 7 dilemmas · 4 distinctive
What stuff is — fundamental, relational, or appearance.
3 mainstream positions
Observer · 37 dilemmas · 5 distinctive
Mind, agency, and the knower's relation to the known.