The only limitations are mental. The guy who thinks positively will win.

Sport fosters many things that are good; teamwork and leadership.

Kids are starting at such a low base rate in terms of fitness that it's taking them years to catch up to where people like me started from. Every little bit is making it more difficult for kids to succeed on a world stage.

You can be an Olympic champion in 9.5 secs, but to be the greatest, there's more to it. It takes a bit of forethought and a lot of mental application.

Having the ambition of becoming Olympic champion is a whole different ambition from wanting to be the greatest.

When I lost my decathlon world record I took it like a man. I only cried for ten hours.

Most people doing the decathlon these days are quite boring, so people don't relate to them.