[JOKES]Depend on ourselves

There's one fun and little story.

Small snail asked his mother: why we were born, to carry this hard and heavy shell?

Mother: because our bodies have no skeleton support, can only climb, and climb fast. So the protection of this shell!

Small snail: caterpillar elder sister does not have a bone, also climb fast, why does she need not carry this hard and heavy shell however?

Mother: because the caterpillar sister can become a butterfly, the sky will protect her.

Small snail: but the earthworm younger brother also did not have the bone to climb fast, also can't become the butterfly he what don't carry this hard and heavy shell?

Mother: because the earthworm brother can drill the earth, the earth will protect him.

Little snail cried: we are poor, the sky does not protect, the earth does not protect.

Mother snail comfort him: "so we have shells!"

We don't depend on the sky or the earth. But we depend on ourselves.