Summary: | 碩士 === 國立政治大學 === 哲學系 === 104 === As the last major work of Kant’s morality, the Metaphysics of Morals has long been neglected in Kantian literatures. Many Scholars argue that the Rechtslehre, or Doctrine of Right, as the first part of Metaphysics of Morals, is not consistent with Kant’s moral theory. This research intends to defend the moral status of Rechtslehre and the importance of Metaphysics of Morals in Kant’s moral philosophy. There are two main arguments - firstly, Rechtslehre does not conflict with Kant’s moral theory; instead, the laws of Right should be derived from categorical imperative, and the system of Right does not contradict to the principle of autonomy. Secondly, the Metaphysics of Morals can be regarded as the “doctrine of moral duties” and the “doctrine of practical morality”, and, together with the Groundwork of the Metaphysics of Morals and the Critique of Practical Reason, constitutes an essential part in Kant’s moral philosophy.
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