No one should ever be afraid of failing; it's being afraid to give it your all in trying that I urge against. If there is one thing I have learned, particularly in my life as an athlete, it is that our limits may not be where we think they are. And, even when we think we've finally reached them, the next time we go there exploring we often find that they've moved again.

A Life Without Limits: A World Champion's Journey (ed. Hachette UK, 2012) - ISBN: 9781849018890