Moses Mendelson tells the story of a woman who came to a great teacher and asked him: "Teacher, how do I know which religion is the right one?"

The teacher replied with a story of a great and wise King with three sons. This King had a precious gift--a magic ring that gave him great compassion, generosity, and a spirit of kindness. As he was dying, each of his sons went to him and asked the father for the ring after his death. And he promised to each of the sons that he would give him the ring. Now how could he possibly do that for all three sons? Here’s what he did. Before he died he called in the finest jewelry maker of the land and asked him to make two identical copies of the ring. After his death each of his sons was presented with a ring.

Well, it wasn’t long before each of the sons…