...all the members of the human family, whether peoples or governments, cities or villages, have become increasingly interdependent. For none is self-sufficiency any longer possible, inasmuch as political ties unite all peoples and nations, and the bonds of trade and industry, of agriculture and education, are being strengthened every day. Hence the unity of all mankind can in this day be achieved. (‘Abdu’l-Baha. cited in Shoghi Effendi, ‘The World Order of Bahá'u'lláh: Selected Letters’; The Compilation of Compilations, vol. III, Economics, Agriculture, and Related Subjects]
