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Skepticism/Russell: E.g. we could have only existed 5 minutes - WittgensteinVsRussell: then he uses the words with a new meaning.
Skepticism/philosophy/Wittgenstein/late: the words "error", "doubt", etc., were also learned by the philosophers from the everyday language, they have not been invented for the purpose of philosophizing.
Vorlesungen 1930-35 Frankfurt 1989
Das Blaue Buch - Eine Philosophische Betrachtung Frankfurt 1984
Tractatus Logico Philosophicus Frankfurt/M 1960