There is a little story that comes from a book called the Star Fisher. Picture if you will an early morning along a California beach. An elderly man is walking along the edge of the water and stops occasionally, picks up something, and then tosses it into the ocean. He then walks a few steps more, picks up something, and tosses it into the ocean. A young jogger is running along and has been watching the man. Finally his curiosity gets the best of him and he stops and goes over to the old gentleman and asks: "Excuse me, what are you doing?"
The man answered: Well, I am saving the life of these star fish. The storm washed them ashore last night, the sun will be up in thirty minutes, and then they will all die. I am throwing them back into the water to save their lives.
The jogger was a bit astounded. Old man, he said, don't you know that you have thirty miles of beach ahead of you and that millions of those star fish were washed ashore last night. What possible difference do you think that you are going to make. The old man took another step picked up a star fish, and with all his might hurled it into the ocean, then turned to the jogger and said: "Well, son, I guess I made a difference in that one's life."