As has been well documented, I smoked pot as a kid, and I view it as a bad habit and a vice, not very different from the cigarettes that I smoked as a young person up through a big chunk of my adult life. I don't think it is more dangerous than alcohol.

The dollar is the reserve currency of the world.

It will be up to each of you to make sure that young people, African Americans, Latinos and women who powered our victory in 2008 stand together once again.

I know that there are those who disagree with the overwhelming scientific evidence on climate change. But here's the thing -- even if you doubt the evidence, providing incentives for energy-efficien cy and clean energy are the right thing to do for our future -- because the nation that leads the clean energy economy will be the nation that leads the global economy. And America must be that nation.

You might be locked in a world not of your own making, her eyes said, but you still have a claim on how it is shaped. You still have responsibilities.

It is very rare I come to an event where I’m like the fifth or sixth most interesting person.

I don't think we should ever accept the idea that someone can come along and take away our safety and our freedom.