O ye beloved of the Lord! In this sacred Dispensation conflict and contention are in no wise permitted. Every aggressor deprives himself of God’s grace. It is incumbent upon every one to show the utmost love, righteousness, straightforwardness and heartfelt kindliness unto all the peoples and kindreds of the world, be they friends or strangers. Nay, the spirit of affection and loving kindness must so prevail that the stranger may find himself a friend, the enemy a true companion, and every least trace of difference he removed. For universality is of God and all limitations earthly. Hence man must strive to show forth such virtues and perfections as may illumine all mankind. The light of the sun shineth upon all the world and the merciful showers of Providence fall upon all peoples. The life-giving breeze reviveth every soul and all living creatures obtain their share and portion at His heavenly board. In like manner the affections and loving kindness of the servants of the One True God must be bountifully and universally extended to all mankind. Regarding this, restrictions and limitations are in no wise permitted.
Wherefore, O my loving friends! Consort with all the peoples and kindreds and religions of the world with the utmost truthfulness, uprightness, faithfulness, kindliness, good-will and friendliness; that all the world of being may be filled with the holy ecstasy of the grace of Baha, that ignorance, enmity, hate and malice may vanish from the world and the darkness of estrangement amidst the peoples and kindreds of the world may be turned into the light of unity. Should other peoples and nations be unfaithful show fidelity unto them, should they be unjust be just unto them, should they avoid you attract them, should they show enmity be friendly, should they poison you sweeten their lives, should they inflict a wound upon you be a salve to their sores. Such are the attributes of the sincere! Such are the attributes of the truthful! ... (’Abdu’l-Baha, The Baha’i Year Book 1924-1925)