This test has much in common with the other great challenges that are defining this young century -- from weapons proliferation, to the spread of disease, to transnational terrorism. These are truly global problems, and no one nation, no matter how much power or political will it possesses, can succeed alone. We all need partners, and we all need to work in concert.

I'm a terrible long-term planner.

In any country, if you don't have countervailing institutions, the power of any one president is problematic for democratic development.

Now, six years ago, al-Qaida was planning to attack the Twin Towers. It wasn't a very nice world. And I think that if you think about six years ago, al-Qaida w…

The picture I have painted today may have seemed somewhat grim. Let me conclude by telling you why I have hope. I have hope because the positive aspects of glo…

Unilateral preemption should not in any way be the model for how we conduct international relations... [It] brings us into very dangerous territory and it coul…

The Soviet Union has long been proposing to outlaw chemical weapons, to remove them from the arsenals of states. We are prepared for resolution of this problem…