Review of Schulz's Attempt at an introduction to a doctrine of morals for all human beings regardless of different religions -- An answer to the question, what is enlightenment? -- On the wrongfulness of unauthorized publication of books -- Groundwork of the metaphysics of morals -- Review of Gottlieb Hufeland's Essay on the principle of natural right -- Kraus' review of Ulrich's Eleutheriology -- Critique of practical reason -- On the common saying, that may be correct in theory, but it is of no use in practice -- Toward perpetual peace -- The metaphysics of morals -- On a supposed right to lie from philanthropy -- On turning out books.

Excerpt from Practical Metaphysics: Or the True Method of Healing To present an old truth in a new form is a privilege cheerfully accorded to all. Truth may assume as many forms as there are varieties of intelligence to receive it. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Original essays by leading philosophers of science explore the question of whether metaphysics can and should be naturalised - conducted as part of natural science. They engage with a range of approaches and disciplines to argue that if metaphysics is to be capable of identifying objective truths, it must be continuous with and inspired by science.