There is a snail always looked cynical about frogs. One day, a frog who lost patience finally said to slug: "Mr. snails, if I have done wrong, so you so hate me?"

Snail replied: "You are the frog has four legs and can jump to and fro, but I have to carry this heavy shell, crawl on the ground, so I feel very sad.

The frog replied: "Every life has suffering respectively, only you just see my joy, but you do not see our suffering (frog)."

And suddenly, there was a huge eagle flies towards them, snails quickly put his body into the shell, while the frog preyed upon by hawks.

No one can possibly parse the meaning of it ..?