“Recite ye the verses of God every morn and eventide.” (Bahá’u’lláh, ‘The Kitáb-i-Aqdas’)

May 31

Sharp must be thy sight… and adamant thy soul, and brass-like thy feet, if thou wishest to be unshaken by the assaults of the selfish desires that whisper in men’s breasts. This is the firm injunction which the Pen of the Most Great Name hath, by virtue of the Will of the Ancient King, been moved to reveal. Keep it as the apple of thine eye, and be thou of the thankful. Strive thou day and night to serve the Cause of Him Who is the Eternal Truth, and be thou detached from all else but Him. By Myself! Whatever thou seest in this Day shall perish. Supremely lofty will be thy station, if thou remainest steadfast in the Cause of thy Lord. Towards Him are thy busy movements directed, and in Him is thy final resting-place. 
- Baha’u’llah  (‘Gleanings from the Writings of Baha’u’llah’)