Dr. Robert Schuller tells of a potato farmer in Idaho. Before they are shipped potatoes are harvested and divided according to size -- big, medium, and small. This makes the most money
“This is the method that all Idaho potato farmers use -- all but one. One farmer never bothered to sort the potatoes at all. Yet he seemed to be making the most money. A puzzled neighbor finally asked him, "What is your secret?" He said, "It’s simple. I just load up the wagon with potatoes and take the roughest road to town. During the eight-mile trip, the little potatoes always fall to the bottom. The medium potatoes land in the middle, while the big potatoes rise to the top."
-- Robert Schuller, Tough Times Never Last But Tough People Do