…in this station [human world] acts of co-operation, mutual
assistance and reciprocity are not confined to the body and to things that
pertain to the material world, but for all conditions, whether physical or
spiritual, such as those related to minds, thoughts, opinions, manners,
customs, attitudes, understandings, feelings or other human susceptibilities.
In all these thou shouldst find these binding relationships securely
established. The more this inter-relationship is strengthened and expanded, the
more will human society advance in progress and prosperity. Indeed without
these vital ties it would be wholly impossible for the world of humanity to
attain true felicity and success.
- 'Abdu'l-Bahá (The Compilation of
Compilations, vol. I, Huququ’llah)