Who you are, what you are, does not change after you occupy the oval office. All it does is magnify who you are. All it does is shine a spotlight on who you are.

Be the best father you can be to your children. Because nothing is more important.

Part of the reason that our politics seems so tough right now and facts and science and argument does not seem to be winning the day all the time is because we're hardwired not to always think clearly when we're scared. And the country's scared.

I will never apologize for saying that the future of humanity and the future of the world is going to be defined by what we have in common as opposed to those things that separate us and ultimately lead us into conflict.

We've got to make sure that our economy is strong at home so that we can project military power overseas.

The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope.

Insurance companies, drug companies are going to have to be ponying up, partly because right now they're receiving huge subsidies.