May 2

All the inhabitants of earth are recipients of the bounty of the one phenomenal sun, and none are preferred above others; so, likewise, all receive the heavenly bestowals of the Word of God; none are specialized as favorites; all are under its protection and universal effulgence. Human strife and religious disagreement complex and disfigure the simple purity and beauty of the divine Cause until clouds obscure the light of reality and disunion results. Therefore, make use of intelligence and reason so that you may dispel these dense clouds from the horizon of human hearts and all hold to the one reality of all the Prophets. It is most certain that if human souls exercise their respective reason and intelligence upon the divine questions, the power of God will dispel every difficulty, and the eternal realities will appear as one light, one truth, one love, one God and a peace that is universal. 

- ‘Abdu’l-Baha  (From a talk, 2 May 1912, Chicago, Illinois; ‘The Promulgation of Universal Peace: Talks Delivered by 'Abdu'l-Bahá during His Visit to the United States and Canada in 1912’)