As president, I will take that work, that bipartisan work, that finding common ground, because you have to be able to get along with people to get things done in Washington.

Keeping your head down and doing the best job you can in the beginning gives you the opportunity to be evaluated on the basis of the contributions you are making. [Then], when you feel strongly about your work or about a position, you'll be given more attention [than] if you hadn't done that constantly.

I think science is real. And I think it's important that we grip this and deal with it, both at home and abroad.

I have to say, that I am delighted that Secretary [Hillary] Clinton month after month after month seems to be adopting more and more of the positions that we have advocated.

There is one lesson from the past, in particular, that we cannot afford to ignore: You cannot make progress on gender equality or broader human development, without safeguarding women's reproductive health and rights.

If I remembered when people said mean things about me, I would never speak to the media again.

We need a return to transparency and a system of checks and balances, to a president who respects Congress' role of oversight and accountability.