It happened that a dog had gotten a piece of meat and was carrying it home to eat it in peace.
Now, on his way home, he had to cross a plank lying across a running brook.as he crossed, he looked down and saw his own shadow reflected in the water beneath.
Thinking it was another dog with another piece of meat, he made up his mind to have that also.so he made a snap at the shadow in the water.but as he opened his mouth , the piece of meat fell out, dropped into the water and was never seen more.
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Beware least you lose the substance by grasping at the shadow.