This last world war together with the treaty of peace and its consequences have taught humanity that unless national, religious and political prejudices be abolished, unless universal brotherhood be established, unless spiritual civilization be given an equal footing with material civilization and thereby change the standard of individual, national and international morality, the world is doomed to failure and society to utter destruction.
- Shoghi Effendi (From a letter written circa 1924 on behalf of Shoghi Effendi to an individual believer; compilation: ‘Social Action’, prepared by the Research Department of the Universal House of Justice, August 2020, online Baha’i Reference Library of the Baha’i World Center)
