The Critique of Impure Reason: Horizons of Possibility and Meaning is a major contribution to the philosophy of science. Thanks to the generosity of its publisher, this impressive volume of 885 pages has been published as a free open access eBook. The work is also available in a printed edition, ISBN 978-0-578-88646-6, available from Amazon, Barnes & Noble, and other booksellers. ●●●●●●●●●● The book inaugurates a revolutionary paradigm shift in philosophical thought by providing compelling and long-sought-for solutions to a wide range of problems that have concerned philosophers of science as well as epistemologists. ●●●●●●●●●● Critique of Impure Reason critically re-appraises such concepts as space, time, causality, consciousness, real¬ism/idealism, the self, other minds, ontology, and free will, and culminates in a revolutionary appreciation of relativity physics and quantum theory. ●●●●●●●●●● The book’s Foreword is by celebrated German philosopher/physicist CARL FRIEDRICH VON WEIZSÄCKER. ●●●●●●●●●● BARTLETT, the author of more than 20 published books, is the recipient of grants from the NSF, AAAS, RAND, Max-Planck-Institute, Lilly, Alliance Française, and others. ●●●●●●●●●● COMMENDATIONS ●●●●●●●●●● “I admire its range of philosophical vision.” – NICHOLAS RESCHER, University of Pittsburgh. ●●●●●●●●●● “Bartlett’s Critique of Impure Reason is an impressive, bold, and ambitious work. Careful scholarship is balanced by original analyses that lead the reader to recognize the limits of meaning, knowledge, and conceptual possibility.” – GERHARD PREYER, Goethe-University, Frankfurt am Main, Germany. ●●●●●●●●●● “I consider Dr. Bartlett’s work soundly conceived and executed with great skill.” – C. F. VON WEIZSÄCKER, philosopher and physicist, Director, Max-Planck-Institute, Starnberg, Germany. ●●●●●●●●●● “Bartlett has written an American “Prolegomena to All Future Metaphysics.” This is a great book, the fruit of a lifetime of research and reflection, and it deserves serious attention.” — MARTIN X. MOLESKI, Canisius College. ●●●●●●●●●● “A book on what might be called the underpinnings of philosophy. It has fascinating depth and breadth” – DON PERLIS, University of Maryland.