What is morality? -- The challenge of cultural relativism -- Subjectivism in ethics -- Does morality depend on religion? -- Psychological egoism -- Ethical egoism -- The utilitarian approach -- The debate over utilitarianism -- Are there absolute moral rules? -- Kant and respect for persons -- The idea of a social contract -- Feminism and the ethics of care -- The ethics of virtue -- What would a satisfactory moral theory be like?