I don't think that there's a hard-and-fast deadline. . . .What we have said all along is that this is not an open-ended process, we are not in this just to talk for talk's sake. . . . We expect prompt, concrete steps to be taken over the next couple of weeks.

Obama said if elected his government would "harness technology to confront the biggest challenges that America faces".

We don't have time for a meeting of the Flat Earth Society.

We forget now, but during his life, Dr. King wasn't always considered a unifying figure. Even after rising to prominence, even after winning the Nobel Peace Prize, Dr. King was vilified by many, denounced as a rabble rouser and an agitator, a communist and a radical. He was even attacked by his own people, by those who felt he was going too fast or those who felt he was going too slow; by those who felt he shouldn't meddle in issues like the Vietnam War or the rights of union workers.

The United Kingdom and the European Union will remain indispensable partners of the United States even as they begin negotiating their ongoing relationship to ensure continued stability, security and prosperity for Europe, Great Britain and Northern Ireland, and the world.

This is a core principle of my presidency - if you threaten America, you will find no safe haven.

I believe marriage is between a man and a woman. I am not in favor of gay marriage.