The life of a puppy

A blind man went to a relative's house as a guest. After dark, his relative kindly lit a lantern for him, say: “It's late, the road is dark, you light a lantern to go home!” The blind man said angrily: “You know I am blind, but still give me a lantern to light the road, is not laughing at me?” His relative said: “You have made the mistake of limiting thinking.