O Kamál! The heights which, through the most gracious favour
of God, mortal man can attain, in this Day, are as yet unrevealed to his sight.
The world of being hath never had, nor doth it yet possess the capacity for
such a revelation ... (Bahá'u'lláh,
Gleanings from the Writings of Bahá'u'lláh; The Compilation of Compilations,
vol. III, Social and Economic Development)
