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| | SparkNotes: Ludwig Wittgenstein: Philosophical Investigations |
 | | Wittgenstein conducts what he calls a “grammatical investigation,” looking closely at the way these words are used to show that the criteria we use for judging whether someone has, for example, understood how to play chess have nothing to do with that person’s mental state and everything to do with that person’s behavior. |
 | | This suggestion diminishes the thrust of “other minds skepticism,” the philosophical claim that we have only imperfect knowledge of other minds, which is based on the premise that the subject is the only one with privileged knowledge of his or her own mind. |
 | | (Philosophers may use specialized or unfamiliar words, but the things they talk about, such as knowledge and certainty, are things with which we are all familiar.) A skeptical argument, such as that in Descartes’ first Meditation, draws its strength from beginning with ordinary observations that no one could deny and then reaching startling conclusions. |
| www.sparknotes.com /philosophy/wittgenstein/section3.rhtml (1447 words) |
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