riddle

it's everything
if you have nothing
or own nothing
it's nothing if you have lots of it
or you really own it
it's more than a prostitute
everyone can smell it
lick it
feel it
tear it
love it
many have died
many are fighting
just for it's sake
it flies for place to place
like a paper plane

what is it tell me, if you know
you have it
i know
i have none