The time has passed when nations should be allowed to do as they individually wish with regard to global matters, each striving solely in its own interests, with the more powerful now able to destroy all humanity and more.
For the common good, we need to frame and abide by a higher system of law and justice, designed with less national, more godlike, perspectives for the preservation and welfare of the biosphere as a whole.
The problems of setting up and administering an effective, international force of this kind can hardly be more grave, formidable or insoluble than those we encounter on any alternative course.
Toward a Higher System of World Law and Justice (1986)