In this classic text, Kant sets out to articulate and defend the Categorical Imperative - the fundamental principle that underlies moral reasoning - and to lay the foundation for a comprehensive account of justice and human virtues. This new edition and translation of Kants work is designed especially for students. An extensive and comprehensive introduction explains the central concepts of Groundwork and looks at Kants main lines of argument. Detailed notes aim to clarify Kants thoughts and to correct some common misunderstandings of his doctrines.