April 18

Oh! that I could travel, even though on foot and in the utmost poverty, to these regions, and, raising the call of Yá-Bahá’u’l-Abhá in cities, villages, mountains, deserts and oceans, promote the Divine teachings! This, alas, I cannot do. How intensely I deplore it! Please God, ye may achieve it. 
(‘Abdu’l-Baha, quoted by Shoghi Effendi in a letter dated June 15, 1946; ‘Messages to America’)