Regarding "Abdu'l-Bahá in London". Nothing can be considered scripture for which we do not have an original text. A verbatim record in Persian of His talks would of course be more reliable than one in English because He was not always accurately interpreted. However such a book is of value, and certainly has its place in our literature. (From a letter written on behalf of Shoghi Effendi to an individual believer, dated 24 October 1947; The Unfolding Destiny of the British Baha'i