The document discusses selling the open-source philosophy. It begins by defining open-source as a process that promises more quality, reliability, flexibility and cost control through distributed peer-review and transparency. It then addresses common myths about open-source like it being insecure and low quality by presenting data from security reports. It highlights Drupal's large community, security practices and adoption by major organizations. It concludes by emphasizing the advantages open-source projects have through continuous improvement, alignment with social values, easier identification of skilled labor and great community support.