[A] primary challenge to Bahá’ís is to preserve and improve those wholesome aspects of tribal and family custom that are in accord with the Bahá’í Teachings and to dispense with those that are not ... . People everywhere have customs which must be abandoned so as to clear the path along which their societies must evolve towards that glorious, new civilization which is to be the fruit of Bahá’u’lláh’s stupendous Revelation. Indeed, in no society on earth can there be found practices which adequately mirror the standards of His Cause.