Once upon a time there lived a tortoise under the tree. One day the tortoise was resting under the tree, on which a bird had built its nest. The tortoise spoke to the bird jokingly, “What a shabby home you have! It is made of broken twigs, it has no roof, and looks crude. What’s worse is that you had to build it yourself. I think my house, which is my shell, is much better than your pathetic nest”.“Yes, it is made of broken sticks, looks shabby and...