Lindsey Stirling

Sometimes, being different feels a lot like being alone. But with that being said, being true to that and being true to my standards and my way of doing things in my art and my music, everything that has made me feel very different... in the end, it has made me the happiest.

The thing about dancing - what it taught me all those years - is it gives you an amazing sense of discipline in forcing yourself to do things that you know are good for you but you don't really want to do.

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.