Sex? Social standing? Social justice? With this breakthrough study of the motivational forces behind human behavior, and grounded in the most up-to-date psychological research available, Dr. Steven Reiss explains the 16 desires and values that shape our behavior-and shows how the ways we prioritize them determines our personality. <br><br> "Well-explained in lay readers' terms." (<i>Library Journal </i>) <br><br> "An exciting new way to think about ourselves, an authoritative, research-based understanding of why we do the things we do." (Ellen Langer, Ph.D., author of <i>Mindfulness</i>) <br><br> "Offers valuable insight into such matters as why some interpersonal relationships are enduringly satisfying and others are not." (Professor Richard J. McNally, Harvard University) <br><br> "Reiss' system can improve our working relationships and enhance our professional lives." (Ruth Luckasson, J.D., Regents' Professor and Professor of Special Education, University of New Mexico)