In 500 words or more (no less), explain the difference between psychological egoism and enlightened ethical egoism. You may use examples, but you will still need to include a full scholarly definition of each, with commentary. You may use any scholarly source other than a dictionary, to include online video lectures. You may use Wikipedia as a starting point, but be aware that Wikipedia is not a scholarly source and therefore can never be quoted in your paper. You will need to include in-text citations in your essay (last name, date, pg#) along with an APA formatted References page. You can find tools and examples of APA citation formats at the Purdue University Online Writing Lab.