Boy and starfish

A man was walking along the shore and suddenly he saw a boy who was lifting something from the sand and throwing it into the sea. The man came closer and saw that the boy was raising sea stars from the sand. They surrounded him from all sides. It seemed that there were millions of sea stars on the sand, the coast was literally littered with them for many kilometers.

“Why are you throwing these starfish into the water?” The man asked, coming closer.

“If they stay on the beach until tomorrow morning, when the tide begins, they will die,” the boy answered, without stopping his occupation.

- But this is just stupid! The man shouted. - Look around! There are millions of sea stars, the coast is just littered with them. Your attempts will not change anything!
')
The boy raised the next starfish, thought for a moment, threw it into the sea and said:

- No, my attempts will change a lot ... for this star.

Then the man also raised a star and threw it into the sea. Then another. By night there were a lot of people on the beach, each of whom raised a star and threw it into the sea. And when the sun rose, there was not a single unsaved soul left on the beach.