Tractatus Logico Philosophicus
- Written in 1918, published in 1921.
- Written in German, titled as “Logisch-Philosophische Abhandlung” in a journal called “Annalen der Naturphilosophie”, 14 (1921), translated to English by C. K. Ogden, titled as “Tractatus Logico-Philosophicus.”
- Written in formal, enumerated logical strucutre.
- The task of philosophy is to reveal the structure of the world by analyzing the structure of language
- Founded on correspondence theory of truth, linguistically “picture theory.” The world is totality of facts.
- Problems of philosophy arise from the bewitchment of the intellect” by language, not to be solved but dissolved through philosophy, analytically.
- Logic can solve problems of philosophy which are linguistic confusion.
- Problems can be solved with logic proving that the propositions doesn’t correspond to a reality. For this a logical language exempt from ambiguity and vagueness is required.
- Anything can be said in language is possible to expressed with logical propositions.
- The limits of world is the limits of language.
Philosophical Investigations
- Written in 1945, published posthumously in 1953.
- Written in German, titled as “Philosophische Untersuchungen”, translated to English by G. E. M. Anscombe, titled as “Philosophical Investigations”, Macmillan Publishing.
- Written in more informal, discursive style.
- The task of philosophy is exploring the idea of achieving philosophical clarity through engaging with the ambiguities and complexities of ordinary language.
- Founded on pragmatic theory of truth, linguistically “use theory.” The world is totality of practices.
- Problems of philosophy arise from the bewitchment of the intellect” by language, not to be solved but dissolved through philosophy, analytically.
- Logic can’t solve problems of language because it’s a dynamic game that makes sense while playing.
- Problems can be solved by trying to analyse the games practically and in Philosophical Investigations there are real life examples and thought experiments accordingly.
- Not everything is possible to express with language.
- The limits of the world is not rigid, limits of language games interwine and constantly change.
