The Fox and the Grapes

A hungry Fox saw some fine bunches of Grapes hanging from a vine that
was trained along a high trellis, and did his best to reach them by
jumping as high as he could into the air. But it was all in vain, for
they were just out of reach: so he gave up trying, and walked away
with an air of dignity and unconcern, remarking, “I thought those
Grapes were ripe, but I see now they are quite sour.”