The document discusses the principles of solidarity and subsidiarity. Solidarity refers to the ties that bind people together in a society based on shared interests and objectives. Subsidiarity holds that social problems should be addressed at the most local level possible. The document provides examples of how these principles could be applied, such as ensuring minority viewpoints are respected (solidarity) and that communities address their own issues without interference from higher levels (subsidiarity). The goal of these principles working together is to achieve the common good of society.