The aim of this article is to investigate Wittgenstein’s views on doubt and certainty as they are expressed in his work On Certainty in the context of discussions about scepticism. I begin with a critical analysis of the interpretational framework according to which Wittgenstein’s notes amount to the kind of anti-sceptical strategy which demonstrates the meaninglessness of sceptical assertions as flowing from an abuse of language. I note the context of Wittgenstein’s notes and I evaluate the strong and weak sides of the linguistic interpretation. Then I adumbrate the possibility of an alternative interpretation of these notes. Firstly, I offer a characterisation of the “sceptical problem” and I defend the thesis that Wittgenstein’s notes can be read as a reaction to the sceptical problem understood as a challenge which calls for the justification of claims to knowledge as defined by the tripartite definition. In the second part of the article I distinguish several types of reaction to the sceptical problem, and I argue in favour of the view that Wittgenstein’s stance on the question can be best characterised as a reaction to the sceptical challenge which provides a “practical solution” to sceptical doubts. scepticism, anti-sceptical strategy, knowledge, Wittgenstein, certainty, action
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