Please do read some fables from The Aesop for Children!
A Fox one day spied a beautiful bunch of ripe grapes hanging from a vine trained along the branches of a tree. The grapes seemed ready to burst with juice, and the Fox's mouth watered as he gazed longingly at them The bunch hung from a high branch, and the Fox had to jump for it. The first time he jumped he missed it by a long way. So he walked off a short distance and took a running leap at it, only to fall short once more. Again and again he tried, but in vain. Now he sat down and looked at the grapes in disgust. "What a fool I am," he said. "Here I am wearing myself out to get a bunch of sour grapes that are not worth gaping for." And off he walked very, very scornfully.
"A frisky young Kid had been left by the herdsman on the thatched roof of a sheep shelter to keep him out of harm's way. The Kid was browsing near the edge of the roof, when he spied a Wolf and began to jeer at him, making faces and abusing him to his heart's content. "I hear you," said the Wolf, "and I haven't the least grudge against you for what you say or do. When you are up there it is the roof that's talking, not you."
Just as a great Bear rushed to seize a stray kid, a Lion leaped from another direction upon the same prey. The two fought furiously for the prize until they had received so many wounds that both sank down unable to continue the battle. Just then a Fox dashed up, and seizing the kid, made off with it as fast as he could go, while the Lion and the Bear looked on in helpless rage. "How much better it would have been," they said, "to have shared in a friendly spirit."