2. What are ethical theories? 3. In what ways are ethical theories like scientific theories? 4. How are ethical theories different from scientific theories? 5. What is the basic difference between consequential and nonconsequential ethical theories? 6. What is the main principle of ethical egoism? 7. Whom does the author list as historical proponents of egoism? 8. Explain the meaning of psychological egoism. 9. What are ethical egoism's strengths, as given by the author? 10. What are the weaknesses of ethical egoism, as given by the author? 11. Who are the primary utilitarian philosophers discussed in the chapter? 12. State the main principle of utilitarianism. 13. What six factors did Bentham say should be included when evaluating the net utility of an action? 14. What are the steps in applying act utilitarianism to a problem? 15. What are the strengths of act utilitarianism? 16. What are the weaknesses of act utilitarianism? 17. What are the steps in rule utilitarian problem solving? 18. What are the strengths and weaknesses rule utilitarianism