True civilization will unfurl its banner in the midmost heart of the world whenever a certain number of its distinguished and high-minded sovereigns—the shining exemplars of devotion and determination—shall, for the good and happiness of all mankind, arise, with firm resolve and clear vision, to establish the Cause of Universal Peace. They must make the Cause of Peace the object of general consultation, and seek by every means in their power to establish a Union of the nations of the world. They must conclude a binding treaty and establish a covenant, the provisions of which shall be sound, inviolable and definite. They must proclaim it to all the world and obtain for it the sanction of all the human race. This supreme and noble undertaking—the real source of the peace and well-being of all the world—should be regarded as sacred by all that dwell on earth.
(The Secret of Divine Civilization)