The Cornerstone of Service
I would also earnestly entreat all the delegates at this coming Convention, and through them I appeal to the larger body of believers whom they represent, to ever bear in mind the supreme injunction of Abdu'l-Baha, to teach unceasingly until the "head cornerstone of the foundation" of the Cause of God is firmly established in every heart. Let those whose time, resources and means allow, travel throughout the length and breadth of that vast continent, let them scatter to the most distant regions of the earth and, fired with enthusiasm and detachment, hand on the torch of God's undying flame to the waiting multitudes of a sadly-stricken world (88:1)

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