Among the dead of September 11, 2001 were over 300 firefighters and police officers who had gone into the burning Twin Towers to rescue people. At first glance, running into a burning skyscraper in order to help others get out certainly seems like an altruistic action (i.e., one done out of unselfish concern for the well-being of others); however, some philosophers would deny that this (or any other) action is truly altruistic. Write an essay which develops your response to the following question: “Does this example of sacrificial behavior show that psychological egoism is false?” However you answer this question, be sure to explain for the reader what psychological egoism is and how it differs from ethical egoism, and be sure to discuss reasons for and against your position. Why should the reader agree with you that the seemingly self-sacrificial behavior of the rescuers on 9/11 does, or does not, show that psychological egoism is false? Strive to be as clear and persuasive as you can; remember to cons der (and to meet as best you can) objections to your point of view.