May 16

…consider what a difference and distinction is there between the material civilization and the Divine civilization! The natural civilization prevents men from doing harm and wrong through force and punishment and thus withholds them from committing crimes. But the Divine civilization so trains men that the human individuals avoid sins without having any fear from (material) punishment; and the very sin itself becomes unto them as the severest punishment. And they will engage in acquiring human virtues, gaining that by which mankind will be uplifted and that which will enlighten the human world with the utmost zeal and fervor. 
- ‘Abdu’l-Baha  (From a Tablet, Star of the West, vol. 2, no. 3, April 28, 1911)