This book originated from a discussion between the author, Derek Parfit and Wlodek Rabinowicz, and further developed in correspondence and intense discussions with Wlodek Rabinowics and John Broome. The author disputes the recent trend in metaethics that focuses on reasons rather than norms. The reader is invited to take a new look at the traditional metaethical questions of moral semantics, ontology, and epistemology.