…the teachings of His Holiness Bahá’u’lláh spread far and
wide fifty years ago, they verily comprehend all other teachings. It is clear
and evident that without these teachings progress and advancement for mankind
are in no wise possible. Every community in the world findeth in these Divine
Teachings the realization of its highest aspirations. These teachings are even
as the tree that beareth the best fruits of all trees. Philosophers, for
instance, find in these heavenly teachings the most perfect solution of their
social problems, and similarly a true and noble exposition of matters that
pertain to philosophical questions. In like manner men of faith behold the
reality of religion manifestly revealed in these heavenly teachings, and
clearly and conclusively prove them to be the real and true remedy for the ills
and infirmities of all mankind. Should these sublime teachings be diffused,
mankind shall be freed from all perils, from all chronic ills and sicknesses.
In like manner are the Bahá’í economic principles the embodiment of the highest
aspirations of all wage-earning classes and of economists of various schools.
(‘Abdu’l-Baha, ’Tablet to August Forel’)