This work investigates the strengths and weaknesses of major ethical theories of the Western philosophical tradition including: egoism, relativism, divine command theory, natural law, social contract, deontology, utilitarianism, existentialism, and evolutionary ethics. The book also considers moral problems like abortion, euthanasia, and biotechnology. In addition, the book discusses death and its possible defeat by future technologies. It concludes by outlining a view of the meaning of life.