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Wittgenstein

Original nameLudwig Wittgenstein

Austrian-Born Philosopher, Proposer of the "Picture Theory" and "Language Games" in the Philosophy of Language

The First to Ask the Right Question · Founders

Philosophy of LanguageLogical PositivismOrdinary Language Analysis

Who they are

Ludwig Wittgenstein (1889–1951) was one of the most influential and most legend-laden philosophers of the twentieth century, who published only a single book in his lifetime, the Tractatus Logico-Philosophicus, yet proposed two utterly different philosophical stances, called by scholars the "early Wittgenstein" and the "later Wittgenstein." Early on he proposed the "picture theory," holding that language is a logical depiction of the factual structure of the world, and that the meaning of a proposition lies in its correspondence to facts, the book ending with the famous line "whereof one cannot speak, thereof one must be silent." He then for a time believed he had solved all philosophical problems and left academia to farm and teach, and years later returned to Cambridge and in the Philosophical Investigations utterly overturned his early stance, proposing the theory of "language games," holding that the meaning of a word is not fixed to some object but depends on its "manner of use" in concrete situations of life and language practice — a turn that profoundly shaped the ordinary-language school of later analytic philosophy.

Primary sourcesWittgenstein, Tractatus Logico-Philosophicus, Philosophical Investigations

Key stories

"Whereof One Cannot Speak, Thereof One Must Be Silent"

Wittgenstein wrote this famous statement at the close of the Tractatus, holding that the logical boundary of language marks off the range of the "sayable" and the "unsayable," and that the propositions of ethics, aesthetics, and metaphysics, being unable to be logically verified or falsified, strictly belong to the "unsayable" — yet he also held that these "unsayable" things are precisely the most important part of life, only that they cannot be directly said clearly in propositional language.

The Poker Incident

In 1946 Wittgenstein clashed fiercely with the philosopher Karl Popper at a Cambridge seminar over "whether genuine philosophical problems exist," and is said to have brandished a poker in agitation while pressing Popper, then stormed out — a dramatic scene later written up in the book Wittgenstein’s Poker, one of the most widely told scholarly anecdotes in twentieth-century philosophy.

Relationships

Nemesis

📐Russell　Russell was his early mentor at Cambridge; the two later parted ways in philosophical stance

Echoes today

Below are how modern works borrow or reinterpret this name or story — not the original material. The two differ, so keep them apart.

Wittgenstein’s PokerThe book recounting his fierce clash with Popper at Cambridge, one of the most widely told scholarly anecdotes in twentieth-century philosophy.

Appears in

The Twentieth Century: Analytic Philosophy and Scientific ReasonWittgenstein: From the "Picture Theory" to "Language Games"The Twentieth Century: Analytic Philosophy and Scientific ReasonPopper’s "Falsifiability" and the Poker Incident

⏳ Who lived at the same time as Wittgenstein? →🔗 Who taught whom →

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