'Abdu'l-Bahá does often state that the medical science will much improve. With the appearance of every Revelation a new insight is created in man and this in turn expresses itself in the growth of science. This has happened in past dispensations and we find its earliest fruits in our present day. What we see however is only the beginning. With the spiritual awakening of man this force will develop and marvelous results will become manifest.
- Shoghi Effendi (From a letter dated 14 January 1932, written on behalf of Shoghi Effendi to two believers; The Compilation of Compilations, vol. I, Some Aspects of Heath, Healing, Nutrition and Related Matters)
