books.google.ca - This book redraws the intellectual map and sets the agenda in philosophy for the next fifty or so years. By making the theory of signs the dominant theme in Four Ages of Understanding, John Deely has produced a history of philosophy that is innovative, original, and complete. The first full-scale demonstration...https://books.google.ca/books/about/Four_Ages_of_Understanding.html?id=zAsjkHJ8aP8C&utm_source=gb-gplus-shareFour Ages of Understanding
