We need not throw away 200 years of American jurisprudence while we fight terrorism. We need not choose between our most deeply held values, and keeping this nation safe.

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.

[ William Ayers] is an example of what I'm talking about. This is a guy who lives in my neighborhood, who's a professor of English in Chicago who I know and who I have not received some official endorsement from. He's not somebody who I exchange ideas from on a regular basis.

We have to find ways in which, collectively, we agree there's some things that government needs to do to help protect us, that in this age of non-state actors who can amass great power, I want my government - and I think the German people should want their government - to be able to find out if a terrorist organization has access to a weapon of mass destruction that might go off in the middle of Berlin.

The world thanks you for sharing Nelson Mandela with us.

With respect to some of the specific legislation or initiatives that I've made, it's true that Republicans often opposed these things. Sometimes they opposed them because I proposed them. Now that they are responsible for governing, I think they'll find that reversing them would be counterproductive.

I was a constitutional law professor, which means unlike the current president I actually respect the Constitution.