CIVILIZATION IS A PART OF NATURE BUT UNFORTUNATELY SOMETIMES ITS OPPOSE THE NATURE FOR ITS OWN EXISTENCE AND GREED. SPECIALLY THE HUMAN, WHO ALWAYS STAND AGAINST THE SLAVERY IN THEIR CIVILIZATION, KEEP THE SLAVERY INSIDE THEN ACTUALLY AND THAT'S WHY THEY ENJOY THE SLAVERY OF OTHER CREATORS. BUT UNTIL THE REALIZE THE ACTUAL MEANING OF FREEDOM OF OTHER CREATORS , HUMAN WILL NEVER HAVE IT FOR THEM.