As a student of history, I also know civilization's debt to Islam.

Our planet is changing in ways that will have profound impacts on all of humankind.

The best judge of whether or not a country is going to develop is how it treats its women. If it's educating its girls, if women have equal rights, that country is going to move forward. But if women are oppressed and abused and illiterate, then they're going to fall behind.

My life story is something obviously that belongs to me very personally. And the fact of the matter is that I had choices and chances and opportunities that were provided to me, based on the way I was able to direct my own decision-making. And what I'm working to fight for is to make sure that all women have the ability to do that.

For the sake of our children and our future, we must do more to combat climate change.

What I believe unites the people of this nation, regardless of race or region or party, young or old, rich or poor, is the simple, profound belief in opportunity for all - the notion that if you work hard and take responsibility, you can get ahead.

I'm not going to Wall Street [after the presidency]. The amount of time that I'll be investing in issues is going to be high. But it'll be necessarily in a different capacity.