Abstract
In 2006, Michael Zimmerman published an underappreciated paper on the nature of moral obligation in which he argued that our moral obligations depend, not on the facts or our beliefs, but on the evidence available to us. Two years later, he published a lengthy book in which he argued more thoroughly for the same conclusion. In this book, Zimmerman returns to the central question of those works to respond to objections that have been brought against the views he presented therein. This new book is the most thorough defense of what has come to be known as the Prospective View of moral obligation and as such is a must-read for those working in normative ethics narrowly construed.