While walking through the forest one day, a man found a young eagle who had fallen out of his nest. He took it home and put it in his barnyard where it soon learned to eat and behave like the chickens. One day a naturalist passed by the farm and asked why it was that the king of all birds should be confined to live in the barnyard with the chickens. The farmer replied that since he had given it chicken feed and trained it to be a chicken, it had never learned to fly. Since it now behaved as the chickens, it was no longer an eagle.

"Still it has the heart of an eagle," replied the naturalist, "and can surely be t…