Critique of Practical Reason and Other Works on Ethics

PREFACE TO THE FOURTH EDITION.

Some corrections have been made in this edition.

The portrait placed at the beginning of the book original: "prefixed" is from a photograph of an oil painting owned by Gräfe and Unzer, booksellers in Königsberg Now Kaliningrad; this city was the center of Prussian academic life and Kant's lifelong home. As a work of art, it is of lower quality than the engraving in the previous edition. However, because it shows Kant in the prime of his life original: "vigour of his age" and—unlike the previous portrait—has never appeared in any other book, readers will likely be pleased with the change. I also own a copy of a rare, full-length silhouette; photographic copies of this can be provided upon request.

My own notes are enclosed in square brackets [ ].