Bahá’u’lláh has revoiced and reestablished the quintessence of the teachings of all the Prophets, setting aside the accessories and purifying religion from human interpretation. He has written a book entitled the Hidden Words. The preface announces that it contains the essences of the words of the Prophets of the past, clothed in the garment of brevity, for the teaching and spiritual guidance of the people of the world. Read it that you may understand the true foundations of religion and reflect upon the inspiration of the Messengers of God. It is light upon light. We must not look for truth in the deeds and actions of nations; we must investigate truth at its divine source and summon all mankind to unity in reality itself.
- ‘Abdu’l-Baha (From a talk, 3 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’)
