The Mole and His Mother

A Mole, a creature blind from birth, once said to his Mother: "I
am sure than I can see, Mother!" In the desire to prove to him
his mistake, his Mother placed before him a few grains of
frankincense, and asked, "What is it?' The young Mole said, "It
is a pebble." His Mother exclaimed: "My son, I am afraid that you
are not only blind, but that you have lost your sense of smell.