Aid can work where there is good governance, and usually fails where governments are unable or unwilling to commit aid to improve the lives of their people.

So much of our attention is trained on the Middle East these days, but we cannot ignore East Asia.

China's ability to deliver nuclear warheads on American cities is expanding.

We cannot do everything in Africa, but doing nothing is not an option.

But in the end our government usually - not unfailingly - is responsive to the people; and usually - not always - will try to do what is right.

Addressing global resentment cannot be put off. If we do not learn to use our predominant power with great restraint, we will antagonize the world.

I can assure you, public service is a stimulating, proud and lively enterprise. It is not just a way of life, it is a way to live fully.