Once upon  a time was a dissatisfied dog,  named Berty.

           One day, the dog saw a cat on a street . It  was thinking :

  ”I would have liked to climb on the trees, too !”

        Later, Berty came near a lake and saw how  a fish was swimming in the water.

       ” I would have liked to live in the lake”, was it thinking.

        ”I would have liked to crawl through the grass” , said the fish.

           Another day , Berty  has met a donkey loaded with many luggage.

       And the donkey said:

   ”Dog , you are so lucky you don”t have to carry so many luggage like me!”

         After a while, Berty  met a sparrow .

The bird said:

”I would have liked to play like you , not to build alone my nest or to be looking all day long for food…”

         Listening carefully , the dog realised that nobody is happy with what they have.

         From that day , Berty started to enjoy its life without complaining about anything.