This book explores the distinction between selflessness and self-interestedness, between acting for one's own advantage and acting, even when disadvantageous, for reasons of duty or conscience. This apparently straightforward contrast (exemplified in the difference between rational-choice models in economics and holistic models in social anthropology) is a source of confusion. This is so, F. G. Bailey argues, because people polarize and essentialize both actors and actions and uphold one or...