Can we regard ourselves as having free will? What is the place of values in a world of facts? What grounds the authority of moral injunctions, and why should we care about them? Unless we provide satisfactory answers to these questions, ethics has no credible status and is likely to be subsumed by psychology, history, or rational decision theory. According to Ermanno Bencivenga, this outcome is both common and regrettable. Bencivenga points...