In a preface to another work, this thinker dissected the sentence "Socrates is wise" and defines thought as a "logical picture of a fact".
One work by this philosopher likens propositions about the world to hinges that support language and declares that those propositions are outside of both doubt and knowledge. In a preface to another work, this thinker dissected the sentence "Socrates is wise" and defines thought as a "logical picture of a fact". This author of On Certainty wrote another work that posited a "beetle in a box" to refute the existence of private languages. For 10 points name this Austrian philosopher who declared "of what we cannot speak, we must pass over in silence" and wrote Philosophical Investigations and Tractatus Logico-Philosophicus.
One work by this philosopher likens propositions about the world to hinges that support language and declares that those propositions are outside of both doubt and knowledge.
Ludwig {Wittgenstein} [or {Ludwig Josef Johann Wittgenstein}]