...Shoghi Effendi hoped that you will exert all your efforts first in deepening your own knowledge of the teachings and then to strive to attract other people. You should form study classes and read the Important books that have been published especially the Iqán which contains the basic tenets of the Faith. The one who ponders over that book and grasps its full significance will obtain a clear insight into the old scriptures and appreciate the true mission of the Báb and Bahá'u'lláh.
- Shoghi Effendi (From a letter dated 27 March 1931 written on behalf of Shoghi Effendi to the Local Spiritual Assembly of the Bahá'ís of St. Louis, Missouri, USA; The Compilation of Compilations, vol. I, The Importance of Deepening Our Knowledge and Understanding of the Faith)