What is a grammatical investigation? What purpose does it serve?

What is the "private language argument"? To what extent is it an argument? To what extent does it deal with language? To what extent does it deal with privacy? What are we to draw from this discussion?

What does Wittgenstein mean when he says, "a rose has teeth in the mouth of the beast"? What is the significance of this statement?

In "The Availability of Wittgenstein's Later Philosophy" (see "Further Reading"), Stanley Cavell characterizes the Investigations as being written in the form of a confession. What does this claim mean? What is its significance?

What is the significance of Wittgenstein's use of criteria? What work does it do for him?

Wittgenstein interrupts his discussion of understanding at ¤155 to launch an extended discussion of reading. What significance does this latter concept have for the former investigation?

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