We are going to transform Britain's rail system from the worst in the world to the best. If you can do a few things like that, when the body gives out, you can say you've lived a good life.
My philosophy is that if I have any money I invest it in new ventures and not have it sitting around.
I love the freedom of movement that my phone gives me. That has definitely transformed my life.
It's rare for a startup to make money immediately, so you need to make sure that you have enough saved or that you have another income stream that can support you.
Capitalism has proven to be the only system that works, but the problem with capitalism is that extreme wealth ends up in the hands of a few people.
And obviously, from our own personal point of view, the principal challenge is a personal challenge.