Lay not aside the fear of God, O kings of the earth, and
beware that ye transgress not the bounds which the Almighty hath fixed. Observe the injunctions laid upon you in His
Book, and take good heed not to overstep their limits. Be vigilant, that ye may not do injustice to
anyone, be it to the extent of a grain of mustard seed. Tread ye the path of justice, for this,
verily, is the straight path.
Compose your differences and reduce your armaments, that the
burden of your expenditures may be lightened, and that your minds and hearts
may be tranquillized. Heal the
dissensions that divide you, and ye will no longer be in need of any armaments
except what the protection of your cities and territories demandeth. Fear ye God, and take heed not to outstrip
the bounds of moderation and be numbered among the extravagant. 
- Baha’u’llah  (‘Summons of the Lord of Hosts’)