One early evening on a lonely country road, an old man was standing on a bridge, high above a deep river. He had just dropped a pebble over the railing to see how long it would take to hit the water. As he watched the ripples fanning out, along came a pickup truck. It slowly came to a stop, but the motor kept running. The old man noticed the name painted on the door: Jack’s Greenhouse Nurseries. Walking up to the window, he saw a man behind the wheel with his head......