Mitt Romney

The soles of Neil Armstrong's boots on the moon made permanent impressions on our souls and in our national psyche. Ann and I watched those steps together on her parent's sofa. Like all Americans we went to bed that night knowing we lived in the greatest country in the history of the world. God bless Neil Armstrong.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.

I don't think even when you find a person, you can be completely honest, ever. There's still pieces of you that you don't give away. I do believe you always need that place where it's just you, your thoughts, no one else's judgment or anything.

The market is incredibly inefficient and capable on rare occasions of being utterly dysfunctional. And people have a really hard time getting their brain around that fact. They want to believe that it's approximately efficient almost all the time, and it simply isn't true.