We need very much the sound, sane, element of thinking which a scientifically trained mind has to offer. When such intellectual powers are linked to deep faith a tremendous teaching potential is created....
- Shoghi Effendi (From a letter written on behalf of Shoghi Effendi; compilation: ‘Issues Related to the Study of the Bahá'í Faith’, prepared by the National Spiritual Assembly of Canada and published by the National Spiritual Assembly of the United States, 1999; The online Baha’ Reference Library, the Baha’i World center)