I knew I wanted to be a professional triathlete, but I didn't know it was possible until I won the junior champs. My dad said I should give Cambridge a go to see if I could do both, but it was only ever a trial.

We are quite different: I'm relaxed, and I get ready for races really late, whereas Jonny is really organised and punctual. I like to lead from the front in the run, whereas Jonny might hold back. Maybe it's because I'm the older brother, but I don't think there is a mental block that stops Jonny doing the same. I just think I'm a bit more gung-ho.

My first event was in Nottingham, aged 11, and the prize was a bike. I thought, 'Wow.' I had no idea what to wear. I think I did it in swimming trunks, then just put on a T-shirt and shoes for the bike part. Triathlons felt exotic. There was a technical and tactical aspect to it as well as the endurance challenge. I was hooked.

Schools are really, really important. It gives you access to every kid in the country. It gives you a massive pool of people to see who might be talented at different sports. It allows kids to try sports. Kids can be inspired all they want, but if they can't go out and try a sport, then it's no good.

If you're an employer, you want to hire an employee who'll do their job, not do your bidding.

Early in my investment-banking career, I realized I was on a path that others had set out for me.

I was an entrepreneur myself and often say that I'm on loan to public service.

The nature of a football team means you're relying on 10 other guys. Even then, that doesn't guarantee a win.