If there's even one thing we can do - even one life we can save - we have an obligation to try

What we may think is funny or cute may end up being powerfully hurtful.

By some estimates, the oil you recently discovered off the shores of Brazil could amount to twice the reserves we have in the United States. We want to work with you. We want to help with technology and support to develop these oil reserves safely, and when you're ready to start selling, we want to be one of your best customers.

You [as a president] have to have a strong team around you. You have to have respect for institutions and the process to make good decisions because you are inherently reliant on other folks.

I actually think, when you're young, ambitions are somewhat common - you want to prove yourself. It may grow out of different life experiences. You may want to prove that you are worthy of the admiration of the demanding father. You may want to prove that you are worthy of the love of an absent father.

My central focus is what are we doing to protect the American people and the American homeland? Afghanistan and Pakistan are critical elements in that process.

There are dangers that globalization increases inequality. There are dangers that because capital is mobile and workers are not, if we are not providing them sufficient protection, that they can be left behind in this process. And that's what we have to focus on.