The economic and ethical case for liberty has been made in the past with great force. My short, philosophical treatise The Structure of Being takes the argument into ontology: it states the conditions under which reality, and a person within it, remains coherent through time. It proposes a foundation for freedom, responsibility and consent in the structure of reality itself. The argument connects self-governed agency with voluntary exchange, monetary integrity and the legitimacy of political authority. Its wider concern is how people can act together while preserving each participant’s...