Foreign policy is like hitting a baseball: if you fail 70 percent of the time, you go to the Hall of Fame.

When it comes to setting national priorities, determining threats, defining challenges, and fashioning and implementing foreign and defense policies, the United States and Europe have parted ways.

Americans are from Mars, Europeans are from Venus: they agree on little and understand each other less and less.

If a caterpillar doesn't know its future has wings, it hardly experiences itself as land-bound.

The thing that I would say is that U.S. power is not eternal. I am not saying that it won't come to an end. Because it will.

When you have a hammer, all problems start to look like nails.

In my view, America has never had the opportunity to enter paradise. Europe enjoys the paradise it enjoys, in part because the United States provides the overall security that allows Europe to live in a system where military power is not a major issue.