A word, I believe, should now be said in connection with the material aspect of their immediate task, upon the termination of which, at its appointed time, must depend not only the unfoldment of the subsequent stages in the Divine Plan envisaged by ‘Abdu’l Bahá, but also the acquisition of those capacities which will qualify them to discharge, in the fullness of time, the duties and responsibilities demanded by that greater mission which it is their privilege to perform.
- Shoghi Effendi (‘The Advent of Divine Justice’)