Almost everything worthwhile carries with it some sort of risk.

The emotional build-up and anticipation if you travel at Christmas can make it harder to enjoy a trip. I think sometimes it is better to travel outside of conventional holiday times for that reason.

The cool things about space is when you put your pants on here, you can put them on two legs at a time.

It’s not enough to shelve your own competitive streak. You have to try, consciously, to help others succeed.

The Bahamas are gorgeous. The deep trench in the ocean floor called the Tongue of the Ocean, which comes between the islands, is the most beautiful deep indigo colour.

I've been lucky enough to fly to space twice.

Competence means keeping your head in a crisis, sticking with a task even when it seems hopeless, and improvising good solutions to tough problems when every second counts. It encompasses ingenuity, determination and being prepared for anything.