Practical Reason in Law and Morality

The concept of practical reason is central to contemporary thought on ethics and the philosophy of law - acting well means acting for good reasons. Explaining this requires several stages. How do reasons relate to actions at all, as incentives and in explanations? What are values, how do they relate to human nature, and how do they enter practical reasoning? How do the concepts of 'right and wrong' fit in, and in what way do they involve questions of mutual trust among human beings? How doe...