"As long as some of us choose to rely on nuclear weapons, we continue to risk that these same weapons will become increasingly attractive to others. I have no doubt that, if we hope to escape self-destruction, then nuclear weapons should have no place in our collective conscience, and no role in our security. To that end, we must ensure — absolutely — that no more countries acquire these deadly weapons. We must see to it that nuclear-weapon states take concrete steps towards nuclear disarmament. And we must put in place a security system that does not rely on nuclear deterrence."