First and foremost, one should use every possible means to
purge one's heart and motives, otherwise, engaging in any form of enterprise
would be futile… One can hardly imagine what a great influence genuine love,
truthfulness and purity of motives exert on the souls of men.
- Shoghi Effendi (From a letter dated 19 December 1923 to the Bahá'ís of the East - translated
from the Persian; ‘The Compilation of Compilations, vol. II, Guidelines for
Teaching’)