You know, one of the things I think you understand as president is you're held responsible for everything, but you don't always have control of everything, right?

So I have known Islam on three continents before coming to the region where it was first revealed

What I consistently say to young people - I say it in the United States, but I'll say it here in Germany and across Europe: Do not take for granted our systems of government and our way of life. I think there is a tendency, because we have lived in an era that has been largely stable and peaceful, at least in advanced countries, where living standards have generally gone up, there is a tendency I think to assume that that's always the case.

For all the noise and anger that too often surrounds the immigration debate, America has nothing to fear from today's immigrants. They have come here for the same reason that families have always come here-for the hope that in America, they could build a better life for themselves and their families. Like the waves of immigrants that came before them and the Hispanic Americans whose families have been here for generations, the recent arrival of Latino immigrants will only enrich our country.

In sectors like energy, I haven't been arguing for more spending per se; I've been arguing that it doesn't make sense for us to spend $4 billion subsidizing an oil industry that's mature and very profitable. We should be using that money to finance clean energy of the future.

Religious freedom doesn't mean you can force others to live by your own beliefs

If you're reading something from a Nobel Prize-winning physicist next to some guy in his underwear writing in his basement, or his mom's basement, on text, it looks like it's equally plausible.