Mulla Nasrudin

How far is enough?

   Nasrudin was at a loose end. His wife told him to go
for a walk. He started up the road, and continued walking
for two days.
   Finally he met a man walking in the opposite direction.
   ‘When you arrive at my house,’ he said to him, ‘go in and
ask my wife if I have gone far enough, or if she says that I 
must walk farther.’