Once upon a time, a hungry fox was roaming around here and there searching for food. Because of hunger, she was feeling weak and tired. Fortunately, she came to a garden where she saw a bunches of grapes laden which were looked quite ripe and juicy.
The fox looked at the grapes with longing eyes and licked his chops. But the bunches were too high for her and she was feeling weak. She sat down for a while to take some rest. After some time Then she jumped as high as he could, to get at the grapes. But she failed to reach them.
Then she again rested for some time and made another bold attempt, but was unlucky for the second time also.
Forced to give up trying anymore and she walked away and instead of accepting his failure, she remarked "the grapes appeared to be ripe and juicy, but now I see them to be quite sour."
This story tells us that, people generally hate what they can't get.