Psychological and enlightened ethical egoism

Explaination of the difference between  psychological 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.  Psychological egoism refers to the concept that self-interest motivates all human actions while ethical egoism refers to the concept that all people should/ought to be motivated by self-interest for their actions. Thus, this is the main difference between psychological egoism and ethical egoism.