I thought I knew what fear was, until I heard the words 'You have cancer'.

I have never doped … I have competed as an endurance athlete for 25 years with no spike in performance, passed more than 500 drug tests and never failed one.

I've committed to surfing the rest of my life.

You can teach someone how to control their strength, but you can't teach them to be strong.

The ban doesn't have anything to do with Livestrong or my ability to work in [the cancer] community. Perhaps it speeds it up. I don't know the examples in Great Britain of athletes who have fallen. I know the examples in the United States - the Tiger Woods, the Michael Vicks, even the Bill Clintons - people who are still out there able to work.

My greatest point is my persistence... However down I am, I fight until the last ball.

I think I bit off more than I could chew. I thought the marathon would be easier. For the level of condition that I have now... that was without a doubt the hardest physical thing I have ever done.