The statement 'Power concedes NOTHING without a demand' is a quote that reflects a political opinion or philosophy regarding social change and the dynamics of power. The context provided indicates that it is part of a promotional activity for a virtual rally for a political figure, Dr. Jill Stein. While the quote itself is a political statement, the overall context is promotional for an event rather than substantive engagement with a specific public issue or policy debate. Therefore, it does not constitute public discourse as defined by the criteria.