That's the way to go. People say: 'Oh, he doesn't want to come back, he's scared,' and it's to play with your brain, to play with your mind. I'm not scared of nobody. I'm not scared of no human being. I'm scared to fight, every time I fight I'm scared, but I'll bite into my mouthpiece and I'll walk the walk.

Because Conor McGregor is so confident - he goes there 'I'll beat this, I will do that' - If I would be his coach I will tell him all the time, behind closed doors, how dangerous [Nate] Diaz is and how much of a war this fight will be and how painful, and long, and uncomfortable it would be, and to get prepared for the worst day of his life.

When I train, I love to take time off and fly to the Natural History Museum or an exhibition. I just love that. When you know your past, it will help you with your future… That’s why most of my friends are not fighters. Most of my friends are nerds like me. That’s why I have a hard time finding a girlfriend. I need someone to talk science with. I’m married to my work right now. But you never know. One day I could wake up and just do something different. Life is so unpredictable.

It's not about how you are when things go well, what defines you is how you are when you fail from an obstacle.

Dana White came out very often in public saying I'm this and that; I'm sure it's also to play with my ego, to make me, for example, come out of retirement and say 'Oh ok, I'll fight for peanuts.' No, I'm not like that. I know the game.

Nick Diaz is a champion so he's got the spirit that comes with it. So he's not going to give up mentally. You see a lot of guys give up mentally and that's why they get knocked out or submitted. They give up mentally before they lose.

I'm not impressed by your performance.