A quotation

So here is a quotation of Jet Li on his official site(for the full thing, go see at http://www.jetli.com/jet/index.php?l=en&s=spirit&ss=questions&p=x&date=020620) :

"Do I think that an understanding by all people that there is one divine
creative source for all religious truths would bring about a global end to
conflict? No, I don't. It is impossible. If there was absolutely no conflict
then this universe would no longer exist as we know it. The universe is
dependent upon conflict -- it requires it -- on every level from the sub-atomic
to the social or psychological to the forces that maintain balance in each
galaxy and beyond."

This has made me taught, do we need conflict in our life, and in our world, to exist? How may of us have said that if we could have one thing in the world is peace everywhere?
On second thought, even if it would be great, i don't think that every person on earth could get along! 6 billions of humans working hands in hands? Not gonna happen!
And if there would not be war, or other conflict, some people would find themselve useless! I think that some of us will loose their energy and passion because they would be no reason of fighting for anything....
What do you think about that quotation? Feedback, please!