we all live in the same world, we can make a very strong force with us unite with each other.
for example we can see from the photo above, a cat can love a duck, while the cat is the same kind of duck but can love it like a family.
WHY???
but why can not we unite and live peacefully enjoy the rest of the city's life in this world. Living peacefully and loving each other without distinction of kind, tribe, religion, and residence..