"Major Works is the finest single-volume anthology of influential philosopher Ludwig Wittgenstein's important writings. Featuring the complete texts of Tractatus Logico-Philosophicus, The Blue and Brown Books: Studies for 'Philosophical 'Investigations,' and-On Certainty, this new collection selects from the early, middle, and later career of this revolutionary thinker, widely recognized as one of the most profound minds of all time."--BOOK JACKET.