Common sense is so very simple but very difficult to grasp.

Fear is your best friend or your worst enemy. It's like fire. If you can control it, it can cook for you; it can heat your house. If you can't control it, it will burn everything around you and destroy you. If you can control your fear, it makes you more alert, like a deer coming across the lawn.

I'm the most brutal and ruthless conquerer there has ever been.

You can’t be disturbed by anything. There’s no emotion involved. You can’t feel sorrow, you can’t feel pity, there’s nothing you feel. The job has to be done.

Fighters are never who they appear to be

It's unnatural to fight somebody who has nothing against you and never did anything to you or to your family, who never stole anything from you. And now you've got to go and try to dismantle this guy.

When I go to Europe or South America, they laugh at things that are totally different than what Americans would laugh at. It's just so crazy how we're so different in personalities with other people.