Books Alexander Waugh's biography of the illustrious Wittgenstein family portrays its members as incommunicative and fierce-willed, writes Richard Eldridge. Wittgenstein’s 1953 discussion of the various uses of the word game ) and (ii) Wittgenstein's famous 'toolbox' analogy is often quoted in this context, and the 'family resemblance theory' lends itself readily to this approach (after all, how one thing resembles another depends very much on which aspects you choose to draw attention to. Wittgenstein’s family resemblance theory supported his view regarding anti-essentialism in art. Wittgenstein’ s idea of family resemblance conflates kinship vocabular y (and other kinds of appropriate causal connection) and resemblance vocabulary. Numbers, being abstract, don’t even have perceptible characteristics, and their similarities and differences are really nothing like those between family members. Family resemblance (Familienähnlichkeit) is a philosophical idea made popular by Ludwig Wittgenstein, with the best known exposition given in his posthumously published book Philosophical Investigations (1953). In his view, “artwork” is an open concept, and there is a non-specific set, or “cluster,” of characteristics that may apply to the concept of artwork. A family resemblance, or family likeness, a term used by Wittgenstein (1889-1951) in its Philosophical Investigations (1953), denotes the properties of terms with a taxonomic classification (hierarchical classification) that cannot be sufficiently detected without “the mind bumps up”; because concepts can have blurred, fuzzy boundaries. Wittgenstein also claims that different kinds of number are linked by family resemblance (67); the points made in this paper apply a fortiori to that suggestion. “Cognitive Linguistics … incorporates (i) ideas fro m the philosophy of language on family resemblance (cf. concept of family resemblance rather than through a set of necessary and sufficient conditions (Wittgenstein 1953).” (Krzeszowski 1990: 137). This chapter explores Wittgenstein's characterization of the concepts of “family resemblance”; for the various resemblances between members of a family: build, features, color of eyes, gait, temperament, etc., overlap and crisscross in the same way. A family resemblance.