We've subsidized oil companies for a century. That's long enough. It's time to end the taxpayer giveaways to an industry that rarely has been more profitable, and double-down on a clean energy industry that never has been more promising. Pass clean energy tax credits. Create these jobs.

One of the thing about being President - that can't be taught, you have to experience, is - there is the sheer weight of decision making. And when I make a decision to send 17,000 young Americans to Afghanistan - you can understand that intellectually. But understanding what that means for those families, for those young people - when you end up sitting at your desk, signing - a condolence letter to one of the family members of a fallen hero - you're reminded each and every day, at every moment, that - the decisions you make count.

The world thanks you for sharing Nelson Mandela with us.

Any so-called leader who does not take this issue (climate change) seriously or treats it like a joke is not fit to lead

I would say of all the things that have happened during the course of my presidency the knowledge that you have hundreds of thousands of people who have been killed, millions who have been displaced, [makes me] ask myself what might I have done differently along the course of the last five, six years.

But race is an issue that I believe this nation cannot afford to ignore right now. We would be making the same mistake that Reverend Wright made in his offending sermons about America - to simplify and stereotype and amplify the negative to the point that it distorts reality.

I don't buy the hype when everybody is saying how wonderful things are and how great I am, and I don't get too down when people say, "This is a disaster and he's done for."