“Black walnut – the words themselves have the ring of quality like sterling silver, hand-carved, virgin wool, bone china, genuine leather, pure gold . . . and a few other terms used to distinguish what is rarest and best in our catalog of material treasures.
“Only a persistent few people ever progress to the cracking of that very tough nut, and many even scuttle the project at that stage. As rare as the nut meat itself is the heroic individual who finally emerges with it.”
Story about black walnuts, read more.