This document discusses several ethical theories including teleological, utilitarianism, and Kantian ethics. It provides background on key concepts in each theory. For teleological theories, it notes they are concerned with the ends or outcomes of decisions. For utilitarianism, it outlines the views of Jeremy Bentham and John Stuart Mill who believed actions should maximize happiness and well-being. It also discusses act and rule utilitarianism. For Kantian ethics, it states that motive is the most important factor in determining what is ethical according to Kant.