To the ancient Greeks, morals, or ethics answered the question how should we live our lives. To Aristotle, the moral qualities included magnaminity, greateness and success. The study of modern Ethics is important to Personal Development because it asks the question how should we live the good life? What is a good life? We suggest the answer is to develop Personal Wellbeing, Understanding and Effectiveness. How should we live the good life? This is a question of Effectiveness.
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