  The idea of a community of principle is meant to accommodate significant disagreement in the society in two ways. First, people may not think that the principles in the society are the best ones. They may simply be the best interpretation of their shared legal culture and history. So people may try to advance their own conceptions of the best principles. Second, people will disagree about the best interpretations of the shared legal culture and thus may think that the society is grounded in different principles.