The document discusses grading happiness based on criteria like durability, number of people involved, and intensity. It defines different grades of happiness from A to E based on these criteria. Higher grades like A are the most durable, involve the most people, and have the highest intensity. Lower grades like E involve harming others or criminal acts. The document provides tips for becoming more objective in assessing happiness choices and reinforcement over time. It warns that the guidelines should not be followed obsessively but considered provisionally.