If Iran cheats, the world will know it.

I've got a pen, and I've got a phone, and I can use that pen to sign executive orders and take executive action. I've got a pen to talk executive actions where congress won't. Where congress isn't acting, I'll act on my own. I have got a pen and I got a phone. And that is all I need.

And, as a consequence of the pressure that we've applied over the last couple of weeks, we have Syria -- for the first time -- acknowledging that it has chemical weapons, agreeing to join the convention that prohibits the use of chemical weapons, and the Russians -- their primary sponsors -- saying that they will push Syria to get all of their chemical weapons out. The distance that we've traveled over these couple of weeks is remarkable.

I face the world as it is and cannot stand idle in the face of threats to the American people. For make no mistake, evil does exist in the world.

The good news is I think there are a lot of young people certainly who were involved in my campaigns, and I think continue to be involved in work not just politically, but through nonprofits and other organizations, that can carry this hard work of democracy forward.

One of the brightest lights of our time-a brilliant writer, a fierce friend, and a truly phenomenal woman.

I try never to get too high when things are going well. I try never to get too low when things are going poorly. I try to keep an even keel.