An old man walking along the beach at dawn saw a young man picking up starfish and throwing them out to sea. "Why are you doing that?" the old man inquired. The young man explained that the starfish had been stranded on the beach by a receding tide and would soon die in the daytime sun. "But the beach goes on for miles." the old man said. "And there's so many! How can your effort make any difference?"
The young man looked at the starfish in his hand and without hesitating threw it to safety in the sea. He looked up at the old man. He smiled and said, "It will make a difference to that one."