1) The ethical doctrine that morality has its foundations in self-interest. (the ethical belief that self-interest is the just and proper motive for all human conduct)
Not to be confused with egotism, any system of ethics supporting the maxim that we ought to look out for number one is egoism. Now this isn't as bad as it sounds, especially when you consider the alternative: altruism, or as egoists call it, slavery. They would point out that whenever one does something he would prefer to do instead of working in the soup kitchen, one is being an egoist. Explore this counter-intutive system of morals by clicking on the sites in this category and, as egoists would agree, know thyself.