ABSTRACT
This chapter defines a moral sphere of life as a situation in which everyone can treat everyone else as an end; in other words, the moral sphere defines a space in which the Ends Principle can be followed by everyone. The general principle of preemptive action is a part of the ideal of preserving the moral sphere in the future. The revised Ends Principle covers the content of many traditional moral principles and their exceptions at the same time. Nonviolence movements are important moral experiments, according to the revised Ends Principle, because they attempt to sustain the moral sphere "to the degree possible" in imperfect conditions by invoking friendly persuasion rather than coercion. Readers may have suspected from the first statement of the Ends Principle that it has something to do with the so-called Golden Rule. The chapter undertakes a thought experiment that began by assuming an attitude of openness in the face of pluralism and uncertainty.
