As I said in my State of the Union address ensuring the security of the United States and the safety of our people demands a smart, patient and disciplined approach to the world.

The biggest problems with Iran in the region are not due to the size of their resources, but due to the fact that they've been more effective in supporting proxies and stirring up dissension and conflict in the region than America or our allies have been in stopping those activities.

Life takes its own turns, makes its own demands, writes its own story, and along the way, we start to realize we are not the author.

It's easier to make negative attacks and simplistic slogans [in social media] than it is to communicate complex policies.

As president, I decided that a strong, confident America could advance our national security by engaging directly with the Iranian government. We've seen the results.

You didn't build that. Somebody else made that happen.

Senator McCain likes to talk about judgment, but really, what does it say about your judgment when you think George Bush has been right more than ninety percent of the time? I don't know about you, but I'm not ready to take a ten percent chance on change.