This document discusses the concept of a "rebel" - someone who does not conform to social norms and questions popular beliefs. It notes that there are both "good rebels" who work to change rules for the better and bring positive change, as well as "bad rebels" who simply break rules and cause problems. The document provides advice for how to be an effective "rebel" by framing new ideas positively, focusing on solutions rather than just complaints, and working to attract others to causes rather than alienating them. It concludes that the world needs rebels to help reform society and bring necessary change.