The Smartest Mrs. Bird and her two little children lived on the peak of an area tree. Every morning she fed them happily. She always did her best to take care of her beloved children. She built a very comfortable nest for them. She was proud of it. After admiring her nest, she looked at Mr. Spider who lived next door. “Hi, Mr. Spider. It’s really nice to see you,” she greeted him. Then she asked, “What are you doing?” I’m finishing my web, replied Mr. Spider. “Your web? Haa, haa, haa, It’s so weak, isn't it? Look at my nest. It’s strong, warm, beautiful and artistic. My children can stay there safely,” Mrs. Bird said proudly. Having heard Mrs. Bird words, Mr. Spider could not bear his emotion any longer. He replied, “But wasn't your nest blown out off its tree because of strong wind last week? Look, the strong wind could not destroy my web. It’s made of flexible and strong thread. Moreover there’s no need for me to go out to get my meal. Fo...