Editorial Reviews - The Unknowable From the Publisher THIS 128 PAGE ARTICLE WAS EXTRACTED FROM THE BOOK: First Principles of a New System of Philosophy, by Herbert Spencer. To purchase the entire book, please order ISBN 076612715X. Synopsis THIS 128 PAGE ARTICLE WAS EXTRACTED FROM THE BOOK: First Principles of a New System of Philosophy, by Herbert Spencer. To purchase the entire book, please order ISBN 076612715X.