Nothing can stand in the way of the power of millions of voices calling for change.

Our intelligence agencies will continue to gather information about the intentions of governments - as opposed to ordinary citizens - around the world, in the same way that the intelligence services of every other nation does. We will not apologize simply because our services may be more effective.

The Muslim call to prayer is one of the prettiest sounds on Earth at sunset.

We know we can't stop every act of violence, every act of evil in the world, but maybe we could try to stop one act of evil, one act of violence.

I would say that I have been consistent in my broad view of how American power should be deployed, and the view that we underestimate our power when we restrict it to just our military power. We shortchange our influence and our ability to shape events when that's the only tool we think we have in the toolbox.

There's a little perspiration involved in bringing about change too.

But let me perfectly clear, because I know you'll hear the same old claims that rolling back these tax breaks means a massive tax increase on the American people: if your family earns less than $250,000 a year, you will not see your taxes increased a single dime. I repeat: not one single dime.