This is the only complete English translation of Kant's major work in applied moral philosophy in which he deals with the basic principles of rights and of virtues. The Metaphysics of Morals (1797) is comprised of two parts: The Doctrines of Right which deals with the rights that people have or can acquire, and The Doctrine of Virtue which deals with the virtues they ought to acquire. Parts of the book have been translated before but this new edition is the only complete translation of the work. There is a substantial introduction that considers the relation between the two parts of the work, and extensive annotation on the unfamiliar and sometimes difficult vocabulary.