[About his marijuana use] I did. It's not something that I'm proud of. It was a mistake as a young man, but you know? I mean not going to -- I never understood that line. The point was to inhale. That was the point.

Across the globe there are girls who will one day lead nations, if only we afford them the chance to choose their own destinies.

We remember the specter of sectarian violence -- al Qaeda's attacks on mosques and pilgrims, militias that carried out campaigns of intimidation and campaigns of assassination. And in the face of ancient divisions, you stood firm to help those Iraqis who put their faith in the future.

The truth is, some of these comments, when you actually ask 'well, this is based on what? This notion that Obama's a socialist, for example?' Nobody can really give you a good answer.

Rather take that moral sense and apply it to the particulars of a job that is going to test those ethical and moral precepts differently than if you're a professor, or a business person, or a dad. And if I were not comfortable with the judicious use of our military to protect the American people, than I shouldn't have run for president. And having said that, I do think that the wisdom of a [Martin Luther] King or a [Mahatma] Gandhi can inform my decisions.

The fact that we are here today to debate raising America's debt limit is a sign of leadership failure... It is a sign that we now depend on ongoing financial assistance from foreign countries to finance our Government's reckless fiscal policies.

There are a lot of very religious scientists around. I think the problem here is that in our school systems, and to some degree - and this is where it is relevant - with school boards around the country that are mandating curriculums and textbooks, you start seeing this weird watering down of scientific fact so that our kids are growing up in an environment - and this connects to what I was saying earlier abou the media - where everything's contested. Where nothing is true.