Kant, Duty and Moral Worth is a fascinating and original examination of Kant's account of moral worth. The complex debate at the heart of Kant's philosophy is over whether Kant said moral actions have worth only if they are carried out from duty, or whether actions carried out from mixed motives can be good. Philip Stratton-Lake offers a unique account of acting from duty, which utilizes the distinction between primary and secondary motives. He maintains that the moral law should not be understood as a normative moral reason but as playing a transcendental role. Thus a Kantian account of moral worth is one where the virtuous agent may be responsive to concrete particular considerations, whilst preserving an essential role for universal moral principles. Kant, Duty and Moral Worth is a lucid examination of Kant's moral thought that will appeal to Kant scholars and anyone interested in moral theory.