What is portrayed as high-minded positions on issues sometimes is just designed to carve out some of their commercial interests.

The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it.

The Warren Court wasn't that radical. It didn't break free from the essential constraints that were placed by the founding fathers in the Constitution... I intend to succeed where they failed.

Democracy is hard work.

I don't expect that the president-elect [Donald Trump] will follow exactly our blueprint or our approach, but my hope is that he does not simply take a real-politic approach and suggest that, you know, if we just cut some deals with Russia, even if it hurts people or even if it violates international norms, or even if it leaves smaller countries vulnerable or creates long-term problems in regions like Syria, that we just do whatever is convenient at the time.

I don't want to jump the gun, [but] I will tell you, though, that my goal is to have the best possible government.

When I was a kid, I inhaled. Frequently. That was the point.