Every single day you're the result of what you did on the days prior.

Imbibe three or four times as much water as you think you need and skip at least one, if not two meals, when you are travelling. You should arrive at your destination feeling slightly hungry and your digestive system reset.

Most budget airlines anywhere in the world are going to leave you dissatisfied after using them.

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

Doing a space walk. It is one of the most rare human experiences. To leave your spaceship and go outside, so that you are alone in the universe with Earth distant and the universe around you. That is amazing.

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

Almost everything worthwhile carries with it some sort of risk.