Aesop's Fables: the Fox and the Crab

A Crab one day grew disgusted with the sands in which he lived. He decided to take a stroll to the meadow not far inland. There he would find better fare than briny water and sand mites. So off he crawled to the meadow. But there a hungry Fox spied him, and in a twinkling, ate him up, both shell and claw.

Be content with your lot.

(The Aesop for Children With pictures by Milo Winter, 1919, p.74)