Certainly, there are very few wholly original ideas in the world; there are usually people coming to the same conclusions or carrying out experiments, whether publicly or privately.

I think, when people hear the word 'philosophy,' they think of Plato and a bunch of people sitting around in their robes pontificating about life and how it should be. But really, somebody who is an active philosopher should not only be thinking of these things but putting them into practice.

One thing I will say about my father is that he was very much out in the forefront talking about his beliefs about being a complete fighter and attaching a philosophy to that and teaching it.

We preserve the legacy of my father through an education approach. We award scholarships. We do classes at schools about my father's philosophy and life.

I mean, we are tribal by nature, and sometimes success and material wealth can divide and separate - it's not a new philosophy I'm sharing - more than hardship, hardship tends to unify.

The burden of poverty isn't just that you don't always have the things you need: it's the feeling of being embarrassed every day of your life, and you'd do anything to lift that burden. As kids, we didn't complain about being poor; we talked about how rich we were going to be and made moves to get the lifestyle we aspired to by any means we could.

Money doesn't talk, it swears.

The idea of solving as huge and long-term a problem as inequality - which, for my money, is the biggest single problem we have here at home - just never gets serious concern from both sides.