Years ago, Russell Conwell told of an ancient Persian, Ali Hafed, who “owned a very large farm that had orchards, grain fields, and gardens... and was a wealthy contented man.” One day a wise man from the East told the farmer all about diamonds and how wealthy he would be if he owned a diamond mine. Ali Hafed went to bed that night a poor man—poor because he was discontented. Craving a mine of diamonds, he sold his farm to search for the rare stones. He traveled the world over, finally becoming so poor, broken, and defeated that he committed suicide. One day the man who purchased Ali Hafed’s farm led his camel into the garden to drink. As his camel put its nose into the brook, the man saw a flash of light from the sands of the stream. He pulled out a stone that reflected all the hues of the rainbow. The man had discovered the diamond mine of Golcanda, the most magnificent mine in all history. Had Ali Hafed remained at home and dug in his own garden, then instead of death in a strange land, he would have had acres of diamonds.

G. Sweeting, in May, 1988 Moody Monthly, p. 95.