Sentence 1: The American philosopher Stanley Cavell helped to re-introduce the book to modern philosophical readers in his collection `` Must We Mean What We Say ? '' ( 1969 ) .
Sentence 2: The American philosopher Stanley Cavell helped reintroduce the book in his collection `` Must say what we mean '' ( 1969 ) to modern philosophical readers .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?