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Philosophical Investigations
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Philosophical Investigations is a work by the philosopher Ludwig Wittgenstein, published posthumously in 1953.
Cover of the first English edition
Cover of the first English edition
The duck-rabbit illusion became famous when Wittgenstein used it to distinguish "seeing that" from "seeing as".
The duck-rabbit illusion became famous when Wittgenstein used it to distinguish "seeing that" from "seeing as".
My Philosophical Development
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My Philosophical Development is a 1959 book by the philosopher Bertrand Russell, in which the author summarizes his philosophical beliefs and explains how they changed during his life.
Cover of the first edition
Cover of the first edition