When God created the dog, He said: "Sit all day by the door of
your house and bark at anyone who comes in or walks past. For this, I
will give you a life span of twenty years."

The dog said: "That's a long time to be barking. How about only ten
years and I'll give you back the other ten?"

So God agreed.

Next, God created the monkey and said: "Entertain people, do tricks,
and make them laugh. For this, I'll give you a twenty-year life
span." The monkey said: "Monkey tricks for twenty years? That's a
pretty long time to perform. How about I give you back ten like the
Dog did?"

And God agreed.

God then created the cow and said: "You must go into the field with
the farmer all day long and suffer under the sun, have calves and
give milk to support the farmer's family. For this, I will give you a
life span of sixty years."

The cow said: "That's kind of a tough life you want me to live for
sixty years. How about twenty and I'll give back the other forty?"

And God agreed again.

Finally, God created man and said: "Eat, sleep, play, marry and enjoy
your life. For this, I'll give you twenty years." But man said: "Only
twenty years? Could you possibly give me my twenty, the forty the cow
gave back, the ten the monkey gave back, and the ten the dog gave
back; that makes eighty, okay?"

"Okay," said God, "You asked for it."

So that is why the first twenty years we eat, sleep, play and enjoy
ourselves. For the next forty years we slave in the sun to support
our family. For the next ten years we do monkey tricks to entertain
the grand-children. And for the last ten years we sit on the front
porch and bark at everyone.

Life has now been explained to you