The limits of language is shown by its being impossible to…

The limits of language is shown by its being impossible to describe the fact which corresponds to (is the translation of) a sentence, without simply repeating the sentence. (This has to do with the Kantian solution of the problem of philosophy.)

1931 Notebook Entry, Ludwig Wittgenstein 

Joseph Kosuth’s “One and Three Chairs”, 1965. The artwork consists of a chair, a photograph of the chair, and the dictionary definition of ‘chair’.