Immanuel Kant 
Moral Law [PDF ebook] 
Groundwork of the Metaphysics of Morals

Few books have had as great an impact on intellectual history as Kant’s The Moral Law. In its short compass one of the greatest minds in the history of philosophy attempts to identify the fundamental principle ’morality’ that governs human action. Supported by a clear introduction and detailed summary of the argument, this is not only an essential