But the truth is, countries have to do what is best in each instance to pursue both their interest and their values.

If you voluntarily quit in the face of adversity, you'll wonder about it for the rest of your life.

In the new economy, information, education, and motivation are everything.

The most powerful people on earth are focus groups.

That everybody can do something, without regard to how old or young they are, rich or poor or middle class they are, how busy or not busy they are and what level skills they have. Everyone can do something. And everybody should do something. ... And if you do it, you'll be happier.

AIDS is no longer a death sentence for those who can get the medicines. Now it's up to the politicians to create the "comprehensive strategies" to better treat the disease.

The great thing about not being president anymore is I can say whatever I want, about anything. Of course [now], nobody really cares what I say. And now I have the worst of all worlds -- my wife has become the secretary of state, so no one really cares what I say -- unless I mess up.