Man must be tireless in his effort. Once his effort is directed in the proper channel if he does not succeed today he will succeed tomorrow. Effort in itself is one of the noblest traits of human character. Devotion to one's calling, effort in its speedy execution, simplicity of spirit and steadfastness through all the ups and downs, these are the hallmarks of success. A person characterized with these attributes will gather the fruits of his labors and will win the happiness of the kingdom.
- 'Abdu'l-Baha (Words of Abdul-Baha, from the Diary of Mirza Ahmad Sohrab, July 8, 1914; Star of the West, vol. 8, no. 2, April 9, 1917)