January 9

As to the attitude of resentment which the young believers are inclined to assume regarding certain precepts of the Cause, such as obligatory prayers: there can and should be no compromise whatever in such matters that are specifically enjoined by Bahá'u'lláh. We should neither have any feeling of shame when observing such laws and precepts, nor should we overestimate their value and significance. Just as the friends have no difficulty in recognizing the value of the specific prayers revealed by Bahá'u'lláh, such as the Tablets of fasting and healing, so also they should recognize that the obligatory prayers are by their very nature of greater effectiveness and are endowed with a greater power than the non-obligatory ones, and as such are essential. 
- Shoghi Effendi  (From a letter dated 4 January 1936 written on behalf of Shoghi Effendi to an individual believer; The Compilation of Compilations, vol. II, Youth)