October 31

The laws revealed by Bahá’u’lláh in the Aqdas are, whenever practicable and not in direct conflict with the Civil Law of the land, absolutely binding on every believer or Bahá’í institution whether in the East or in the West. Certain ... laws should be regarded by all believers as universally and vitally applicable at the present time. Others have been formulated in anticipation of a state of society destined to emerge from the chaotic conditions that prevail today... What has not been formulated in the Aqdas, in addition to matters of detail and of secondary importance arising out of the application of the laws already formulated by Bahá’u’lláh, will have to be enacted by the Universal House of Justice. This body can supplement but never invalidate or modify in the least degree what has already been formulated by Bahá’u’lláh. Nor has the Guardian any right whatsoever to lessen the binding effect much less to abrogate the provisions of so fundamental and sacred a Book. 
- Shoghi Effendi  (From a letter written on behalf of Shoghi Effendi to a National Spiritual Assembly in 1935, quoted by the Universal House of Justice in the “Introduction to the Kitab-i-Aqdas’)