November 20

All the Prophets have come to promote divine bestowals, to found the spiritual civilization and teach the principles of morality. Therefore, we must strive with all our powers so that spiritual influences may gain the victory. For material forces have attacked mankind. The world of humanity is submerged in a sea of materialism. The rays of the Sun of Reality are seen but dimly and darkly through opaque glasses. The penetrative power of the divine bounty is not fully manifest. 
(‘Abdu’l-Baha, from a talk, New York, 14 April 1912; ‘The Promulgation of Universal Peace: Talks Delivered by 'Abdu'l-Bahá during His Visit to the United States and Canada in 1912’)