The four theories identify different sources of value and different responses to value. Enlightened Egoism holds that we may do whatever is in our long-term, well-considered self-interest. Utilitarianism says happiness is valuable and tells us to promote it. Kantianism (Deontology) says humanity is valuable and tells us to respect it. Virtue ethics says virtue is valuable and tells us to embody it. Which theory best answers the standard questions ethics aims to answer, such as: How should I live my life