I love a challenge and the last four years it has all come to fruition and it has been wonderful.

Anything can happen to anyone at any time and you shouldn't just live through the days, or you lose them. You should do what you can to enjoy every moment.

Philosophy changes day by day.

I think of myself not just as a dreamer, but as a dream chaser.

I think I've probably re-invented myself three or four times now, if that's what one calls it.

In the past, I always used to be looking for answers. Today, I know there are only questions. So I just live.

A journey into space is the greatest adventure I can imagine.