Book excerpt: Esteemed moral philosopher James Rachels here collects fifteen essays, some classic and others extensively revised, on the nature and limits of moral reasoning. Rachels argues that, rather than simply expressing societal conventions, moral philosophy can subvert received opinion and replace it with something better. Combining a concern for ethical theory with a discussion of practical moral issues such as euthanasia, the rights of animals, privacy, and affirmative action. Can Ethics Provide Answers is an excellent collection for students, scholars, and anyone concerned with the degree to which our principles can guide our policies.