Making a difference

I read about an old man who was walking on the beach very early in
the morning when he saw a young feller up ahead of him picking up
starfish and throwing them into the sea.  When he finally caught up
with the young feller, he asked him why he was doing this.  The young
feller answered him, "Because the stranded starfish would die if left
until the bright morning sun hits them."

"But the beach goes on for miles and miles and there are millions of
starfish," said the old man.  The young feller looked at the starfish
in his hand and then threw it to safety in the waves.  He then said,
"it makes a BIG difference to that one!"