the cow protest: (I am so hard, and i can only eat grass, I am as long as 20 years of life expectancy, the remaining back to you.)
the next day,god created monkey
he said to the monkey: (You have to entertainment human beings, to make them laugh and you want to perform tumbling, and you can only eat bananas. I'll give you the life span of 20 years.)
the monkey protest: (I am so hard,need to tumbling,need to give joy to human, but also can only eat bananas, my life is like as long as 10, and the rest to you.）
the third day,god created dog.
he said to the dog: (You have to bark at the door. You eat the leftovers the owners of things. I'll give you 25 years of life)
the dog protest: (Sitting through the whole day in front of bark, I would like to get 15 years of life.Well, the rest returned to you.)
the forth day,god created human being.
he said to the human: (You only need to sleep, eat and play, do not do anything, just enjoy life, I'll give you the life span of 20 years.)
the human protest: (Such a good life only 20 years)
god never say anything.
the human speak to god: (So be it. the cow gave you 30 years, the monkeys gave 10 years, dogs have also been given you 10 years, these have all given me the OK, then I will be able to live to the age of 70.)
this is why we have only need to eat,sleep and play in the starting of 20 years
the follwing 30 years,we need to work the whole day for family as if the cows
the next 10years,we retired,we are just like the monkeys acrobatic performances to entertain our grandchildren
and the last 10 years,stay at home all day, like a dog sitting beside the entrance gates.......