What you have undertaken to achieve, under the guidance and instruction, of that valiant and indefatigable servant of the Abha Threshold, my well-beloved brother Dr. Bagdadi, is highly praiseworthy and of supreme importance. Never flinch in your great enterprise. Deepen your knowledge of the Cause. Strive to extend the sphere of your activities and seek to understand and promote the harmony that must exist between true science and Divine Revelation. I will never fail to pray for you. I have great hopes in the ultimate triumph of the task before you. (In the handwriting of Shoghi Effendi, appended to a letter dated 23 January 1924 written on his behalf to the Bahá'í Youth of Chicago, Illinois, U.S.A; The Compilation of Compilations, vol. II, Youth))
