There's no question at times of my life, partially driven by how passionately I felt about this country, that I worked far too hard and things happened in my life that were not appropriate.

I love the environment, but I'm cheap on the environment.

I have six times as many Twitter followers as all the other candidates combined, but it didn't count because if it counted I'd still be a candidate; since I can't be a candidate that can't count.

You know, you try to move the Brussels bureaucracy, and unless you have some capacity to really break it, you can't move it. It just sits there and stares at you.

An energy tax punishes senior citizens, it punishes rural Americans, if you use electricity it punishes you. This bill will increase your cost of living and may kill your job.

I think Putin has already gotten used to the idea of Obama and his secretary of state, John Kerry, making noise - it just doesn't seem to impress Moscow at all.

The terrorism danger to the United States "is even worse than September 11th, when 19 hijackers murdered almost 3,000 Americans."