This book addresses the question of what it means to be moral and which capacities one needs to be moral. It questions whether empathy is a cognitive or an affective capacity, or perhaps both. As most moral beings behave immorally from time to time, the authors ask which factors cause or motivate people to translate their moral beliefs into action? Specially addressed is the question of what is the role of internal factors such as willpower, commitment, character, and what is the role of external, situational and structural factors? The questions are considered from various (disciplinary) perspectives.