Whys isn't the world peaceful?
It is because everyone is too greedy.
Great people have great greed.
Small people have small greed.
Each person has his own greed.
However many people there are in a country,
that is how many greedy people there are.
So if people want peace,
they must start from their own heats.
If people's hearts are not greedy,
are not contentious,
are not full of hatred,
and are not suspicious,
then the world will be peaceful.