For 10 points, name this Austrian philosopher who wrote Philosophical Investigations and Tractatus Logico-Philosophicus.
This thinker published some notes on Goethe's Theory of Colours, and he used an argument by G.E. Moore in a work that claims doubt is embedded in underlying beliefs. In addition to Remarks on Colour and On Certainty, this thinker wrote a set of notes that present his method for linguistic analysis in his Blue Book. He uses the "beetle in a box" thought experiment to refute the possibility of a private language in one work. This thinker organized seven propositions in order to link language, science, and reality in another. For 10 points, name this Austrian philosopher who wrote Philosophical Investigations and Tractatus Logico-Philosophicus.
This thinker published some notes on Goethe's Theory of Colours, and he used an argument by G.E. Moore in a work that claims doubt is embedded in underlying beliefs.
Ludwig Josef Johann Wittgenstein