I studied every move, I became fascinated by thinking what I could have done differently. And I take that approach now as a professional. I am on it, all the time, never stop thinking, learning. You don't get to be world champion unless you do that.

There are people who have great skills, who do great things, but don't embody the whole animal that is the fight game like I do.

Whoever said it's tough at the top is talking absolute sh*t.

I believe in believing. My coach John Kavanagh is a big atheist and he is always trying to persuade people to his way of thinking, and I think what a waste of energy. If people want to believe in this god, or that god, that's fine by me, believe away. But I think we can be our own gods. I believe in myself.

Boxing is going to have to catch up with the kind of things UFC is doing. They're getting left behind.

A fight is mental, not just physical and psychological warfare is absolutely part of that.

Power and speed aren't enough to overcome someone who is strategic, who knows what you'll do before you do it and can turn it on you; someone who is mentally engaged and combines the whole package.