Dispute not with any one concerning the things of this world and its affairs, for God hath abandoned them to such as have set their affection upon them. Out of the whole world He hath chosen for Himself the hearts of men -- hearts which the hosts of revelation and of utterance can subdue. Thus hath it been ordained by the Fingers of Baha, upon the Tablet of God's irrevocable decree, by the behest of Him Who is the Supreme Ordainer, the All-Knowing. (Baha'u'llah, Gleanings from the Writings of Baha'u'llah)