An old man walks down to the beach and sees it is covered with tens of thousands of starfish, as far as the eye can see. Far down the beach he sees a young girl who is picking the starfish up, one by one, and tossing them back in the ocean.
Amused, he walks to the girl to speak with her. “Little girl,” the old man says, “What are you doing?”
“I’m saving these starfishes lives,” says the girl. “If I don’t throw them back in the water, they’ll drown. They need the water to live.”
The old man laughs to himself. Näive girl, he thinks. “But you are only one person. There are tens of thousands of starfish on this beach. How can you possibly make a difference?”
The girl bends down, picks up a star fish, looks at it, looks up at the man, tosses it into the surf, then says, “I made a difference for that one.”