Small snail asked mom: Why do we have to carry this hard and heavy shell?
Mom: Because our body has no support, it can only climb, and it is not crawling. So the protection of this shell!
Small snail: caterpillar is not bone, can't climb, why don't she have to carry this hard and heavy shell?
Mom: Because the caterpillar can turn into a butterfly, the sky will protect her.
Small snails: But the younger brother didn't climb the bones, nor will it become a butterfly he doesn't have this hard and heavy shell?
Mom: Because the younger brother will blister the soil, the earth will protect him.
Small snails cried: we are so pitiful, the sky does not protect, and the earth does not protect.
Snail mother comforts him: "So we have the shell!" We don't rely on the sky, and we rely on yourself.
