Immanuel Kant's 1785 philosophical treatise lays the groundwork for a metaphysics of morals. In clear, demanding prose, it asks what makes an action morally good and develops the idea of a universal moral law grounded in reason. It rewards listeners seeking a rigorous introduction to modern ethical thought.
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Text source: gutenberg.org · The work is in the public domain.
Opening of the book
FUNDAMENTAL PRINCIPLES OF
THE METAPHYSIC OF MORALS
By Immanuel Kant
1785
Translated by Thomas Kingsmill Abbott
CONTENTS
PREFACE
Ancient Greek philosophy was divided into three sciences: physics, ethics, and logic. This division is perfectly suitable to the nature of the thing; and the only improvement that can be made in it is to add the principle on which it is based, so that we may both satisfy ourselves of its completeness, and also be able to determine correctly the necessary subdivisions.
All rational knowledge is either material or formal: the former