“We cannot segregate the human heart from the environment outside us and say that once one of these is reformed everything will be improved. Man is organic with the world. His inner life moulds the environment and is itself also deeply affected by it. The one acts upon the other and every abiding change in the life of man is the result of these mutual reactions.”

From a letter dated 17 February 1933 written on behalf of Shoghi Effendi to an individual believer (Social Action)