Surely the ideal way of teaching is to prove our points by constant reference to the actual words of Bahá'u'lláh and the Master. This will save the Cause from being misinterpreted by individuals. It is what these divine Lights say that is truth and therefore should be the authorities of our statements. This, however, does not mean that our freedom of expression is limited. We can always find new ways of approach to that truth or explain how they influence our life and condition. The more deep our studies the more we can understand the significance of the teachings.
In this Cause we cannot divorce the letter from the spirit of the words. As Bahá'u'lláh says we should take the outward significance and super-impose upon it the inner. Either without the other is wrong and defective.
- Shoghi Effendi (From a letter dated 16 February 1932 written on behalf of Shoghi Effendi to an individual believer; The Compilation of Compilations, vol. I, The Importance of Deepening Our Knowledge and Understanding of the Faith)