Wittgenstein in Tractatus Logico-Philosophicus insists that expression in language is the dead-end of epistemology. He later retracted this idea. Nevertheless, Wittgenstein still remains as the central figure of modern analytic philosophy.
‘§809 What is the criterion for the sameness of two images? – What is the criterion for the redness of an image? For me, when it is someone else’s image: what he says and does. For myself, when it is my image: nothing. And what does for ‘red’ also goes for ’same ‘.’ [...]
This is part 1 of 9.