RXN12 rated Prolegomena to Any Future Metaphysics That Will Be Able to Come Forward As Science With Kant's Letter to Marcus Herz, February 27, 1772: 4 stars Jan. 1, 2016 Public Prolegomena to Any Future Metaphysics That Will Be Able to Come Forward As Science With Kant's Letter to Marcus Herz, February 27, 1772 by Immanuel Kant, James W. Ellington