Remain calm, be kind.

You can be sure that the American spirit will prevail over this tragedy.

Great leaders are those who are able to look reality in the face, however painful it may be, and deal with it.

One of the fondest expressions around is that we can't be the world's policeman. But guess who gets called when suddenly someone needs a cop.

It takes more courage to send men into battle than to fight the battle yourself.

When you help the poorest in the world, you start to move them up an economic and social ladder, and they're not going to be moving toward violence or terrorism of the kind that we worry about.

My responsibility, our responsibility as lucky Americans, is to try to give back to this country as much as it has given us, as we continue our American journey together.