This document provides tips for saying no in professional contexts. It begins with a disclaimer that the contents are based on assumptions and not proven facts. It then discusses how saying no can hurt clients, employers, and one's own career. Specific tips are provided for saying no to bosses or clients in a respectful manner by avoiding power struggles, considering timing, acknowledging shared goals, and explaining consequences. Sample phrases for saying no politely are also listed. The document emphasizes saying no when something goes against one's values and standing up for beliefs. It closes by hoping the reader will try to leave the world a little better than they found it.