How often the beloved Master was heard to say, should each one of the friends take upon himself to carry out, in all its integrity and implications, only one of the teachings of the Faith, with devotion, detachment, constancy and perseverance and exemplify it in all his deeds and pursuits of life, the world would become another world and the face of the earth would mirror forth the splendours of the Abha Paradise. Consider what marvellous changes would be effected if the beloved of the Merciful conducted themselves, both in their individual and collective capacities, in accordance with the counsels and exhortations which have streamed from the Pen of Glory. (From a letter dated 12 January 1923 written by Shoghi Effendi to the Baha'is of Persia - translated from the Persian; The Compilation of Compilations, vol. II, Living the Life)